Four Major Diseases linked to smoking

According to the Centers for Disease Control and Prevention (2021), Cigarette smoking damages almost every organ in the body, leading to numerous diseases and overall health decline. In the United States, smoking is responsible for over 480,000 deaths each year, nearly one in five deaths. For women, smoking can make it more difficult to conceive and can adversely affect a baby’s health before and after birth. In men, smoking can reduce sperm quality, decreasing fertility and increasing the risk of congenital disabilities and miscarriage. Smoking also harms oral health, potentially leading to tooth loss. Moreover, it increases the risk of cataracts, which cloud the eye’s lens and impair vision. It can cause age-related macular degeneration (AMD), damaging a small spot near the retina’s center needed for central vision. Additionally, smoking is a risk factor for type 2 diabetes mellitus and can complicate its management, with active smokers having a 30-40% higher risk of developing diabetes compared to nonsmokers.

The four major diseases linked to smoking are

• Cardiovascular Diseases
  • Increased mortality rates due to smoking.
  • Elevated risk of ischemic heart diseases.
• Respiratory Conditions
  • Smoking is a primary cause of chronic respiratory deaths.
  • Increased risk of respiratory diseases and tuberculosis.
• Stroke
  • A Study reports a Positive correlation between smoking prevalence and stroke-related deaths.
• Lung Cancer
  • Study reports there is a higher likelihood of lung cancer with increased daily cigarette consumption.
    The Health Risk Hiding In Your Light Switch and How to Prevent It

    Light at night (LAN) refers to the use of artificial or natural light during nighttime hours for visibility purposes.

     Deprato et al. (2025) reports that approximately 80% of the global population is exposed to light-polluted skies, and LAN is now considered a major environmental pollutant. Sources include streetlights, vehicles, homes, industries, and even atmospheric reflections.

    LAN disrupts the body’s circadian rhythm, the internal 24-hour clock regulated by the brain’s suprachiasmatic nucleus. When artificial light interferes with natural dark–light patterns, it delays the circadian clock and sleep-wake cycle, leading to melatonin suppression, sleep disturbances, and an increased risk of various diseases (Deprato et al., 2025). Blue-rich and bright LED lights cause the most significant disruption (Deprato et al., 2025). The study reports that LAN exposure is linked to higher rates of depression, bipolar disorder, anxiety, and other severe mental disorders, likely due to circadian misalignment, sleep deprivation, and changes in brain chemicals such as serotonin and dopamine.

     Implications:

    1.The findings suggest that light pollution and artificial light exposure at night are not only environmental/visual concerns but also have mental health implications.

    2. Encourages rethinking nighttime habits — including screen use before bed, bedroom lighting, blackout curtains, and managing exposure to streetlights or indoor lights at night.

    3.The implications of light at night may vary by culture or by groups

    4. Designing homes and neighborhoods that minimize intrusive nighttime lighting in bedrooms, promoting lighting standards that consider human health

    Prevention/ Mitigation strategies

    1.Reduce screen time before bed: Use “night mode” or blue-light filters on devices, dim the brightness, and avoid stimulating content.

    2. Improve bedroom lighting: Use blackout curtains, turn off or dim indoor lights, remove bright electronic indicators, and opt for warm, low-intensity lighting in the evening.

    3. Maintain a consistent sleep–wake schedule: Even if artificial light is present, a regular circadian rhythm helps mitigate disruptions.

    4. Use lighting design for sleep: In the evening, switch to warmer (red/orange) wavelengths; avoid bright overhead white/blue light late at night.

    5.Monitor and adjust ambient outdoor lighting: If streetlights are intrusive, consider using blackout curtains or an eye mask; if indoor lighting spills into the night, turn off non-essential lights.

    Source: https://doi.org/10.1016/j.scitotenv.2025.179188

    Should we throw away our medicines after the ‘Best Before’ or Expiry date?

    Introduction

    One of man’s best inventions is drugs, especially disease-specific ones. Drugs are substances other than food, which can prevent, relieve the symptoms, or cure an abnormality or disease. Globally, the cost of drugs has soared over the years, resulting in a situation whereby low-income earners are unable to buy branded medications. In underdeveloped and developing countries where food and drug agencies have poor capacity to perform their regulatory functions optimally, we tend to see the proliferation of substandard or fake drugs. So many times, this ugly trend is energized by not just greed but by the market demands for affordable medications.

    Why Medication exceeds expiry date

     To mitigate the challenge of not being able to buy drugs, when necessary, people from resource-limited settings stack up some essential medications in their homes, which eventually exceed the best before or expiry dates on them. Sometimes, doctors could change a patient’s prescription because of reactions, allergies, or inability to purchase the drug, which could result in leftover drugs that eventually exceed the expiration date. Also, big pharmacies and patent-drug stores cannot sell all their stock, leading to the expiration of some drugs. This situation has raised many questions about the safety of these drugs after their expiration or beyond the “best before” date. Because of the importance of drugs and the health risks involved when taken wrongly, people have always consciously discarded unused drugs when it’s past the expiration date, even one day.

    How Safe is a drug after the expiry date?

    The debate about drugs being safe after their expiration date has persisted over the years, as many people still hold the opinion that pharmaceutical companies deliberately label their drugs with short shelf lives to guarantee steady patronage. Eventually, most of these unused drugs are discarded. The context that drugs can still be safe for a long time after expiration has gained several affirmations. In a recent study by Benjamin Davido and others titled ‘Efficacy of Expired Antibiotics: A Real Debate in the Context of Repeated Drug Shortages’ published in MDPI Journal “Antibiotics”, it was reported that when appropriately stored in line with the expected conditions, no expired antibiotics tested failed to be potent after one year of expiration. In another study by Sushil Sharma and others, titled ‘A study to investigate the chemical potency, physical stability, and efficacy of analgesic agents over a period of two years post their expiry date’ published in the “Medical Journal Armed Forces India”, it was seen that drugs such as Diclofenac, Piroxicam, and Ibuprofen retained their stability, analgesic efficacy, chemical active ingredients and by implication their potency up to a duration of two years after expiration.

    Important factors to consider

    However, the issues of proper storage and handling can play a big role, especially in the tropical climate of West Africa and other geographical regions. Hence, people in the tropics may have to rely on their capacity to store their drugs in the required condition in deciding whether to use a drug past the expiration date or not.

    Conclusion

    This article doesn’t advocate for the use of expired medication but to reduce anxiety about accidental use. It is essential to understand factors that impact drug stability.

    (Written by Ebenezer Dic-Ijiewere PhD.)

    NB: Always consult your healthcare professionals regarding expired medications to ensure medication safety and effectiveness.

    Coronary Heart Disease Risk Factors: Measures for Reduction

    Coronary Heart Disease (CHD) is a chronic and intricate ailment associated with substantial morbidity and mortality, primarily attributed to atherosclerotic lesions in coronary vessels, ultimately leading to myocardial infarction (MI) and stroke. Unhealthy eating habits, often influenced by chronic inflammation, are closely linked to CHD. Various health conditions, lifestyle choices, as well as your age and family history, can elevate the risk of developing heart disease; approximately 47% of Americans have at least one of the three primary risk factors for heart disease: high blood pressure, elevated cholesterol levels, and smoking. Certain risk factors for heart disease, such as age or family history, are beyond your control. However, you can proactively reduce your risk by changing the factors you can control.

    Behaviors that heighten the risk for heart disease are

    • Smoking: The Food & Drug Administration (FDA) estimates that cardiovascular disease causes 800,000 deaths and 400,000 premature deaths per year. About one-fifth and one-third of these result from smoking, respectively. Additionally, research reported that smoking resulted in a 51% increased risk of coronary heart disease in patients with diabetes. Cigarette smoking has the potential to harm the heart and blood vessels, amplifying the risk for heart conditions like atherosclerosis and heart attacks. Even nonsmokers face an increased risk of heart disease when exposed to secondhand smoke.
    • Excessive alcohol consumption can elevate blood pressure and elevate the risk of heart disease. It also leads to increased triglyceride levels, a fatty substance in the blood associated with an elevated risk of heart disease.
    • Sedentary lifestyle: Insufficient physical activity is a precursor to heart disease and can strengthen the likelihood of other medical conditions that serve as risk factors, including obesity, high blood pressure, high cholesterol, and diabetes. Engaging in regular physical activity can effectively decrease the risk of heart disease.
    • Unhealthy Eating Habits: A diet rich in saturated fats, trans fats, and cholesterol has been associated with heart disease and related conditions like atherosclerosis. Recent research has provided more explicit evidence that trans-fat significantly raises the risk of cardiovascular disease by adversely affecting lipids, endothelial function, insulin resistance, and inflammation. For each 2% increase in calories consumed from trans-fat, there is a 23% higher risk of coronary artery disease. Recent studies and systematic reviews have focused on red and processed meat consumption. The research consistently demonstrates an increased risk of coronary heart disease and cardiovascular events. The risk ranges from 15% to 29% higher with red meat consumption and 23% to 42% higher with processed meat consumption

    Measures for Reducing the Risk of Coronary Heart Disease

    •  Educating children and adolescents about the dangers of smoking to deter the initiation of tobacco use. The Food & Drug Administration (FDA) reported that the risk of coronary artery disease decreases to the level of lifetime nonsmokers within four years of quitting and within ten years. 
    • The DASH, Mediterranean, and vegetarian diets have the most evidence for cardiovascular disease prevention. The DASH diet has been shown to lower systolic blood pressure by up to 11.5 mmHg in adults with hypertension. Additionally, reported findings indicate a 21% reduction in coronary artery disease risk with adopting the DASH diet.
    •  The American Heart Association suggests substituting saturated fat with polyunsaturated and monounsaturated fats. A 5% shift from saturated fat to polyunsaturated fat consumption is linked to a 10% lower risk of coronary artery disease.
    • Engaging in about 150 minutes per week of moderate-intensity aerobic activity significantly lowers the risk of cardiovascular disease. Moderate-intensity aerobic exercise is characterized by activity that maintains a heart rate between 50 to 70 percent of the individual’s maximum heart rate, calculated as 220 beats per minute minus the person’s age.

    How to Decrease High Cholesterol Levels

    High cholesterol (hypercholesterolemia) refers to elevated levels of cholesterol in the blood, especially low-density lipoprotein cholesterol (LDL-C)—which is widely regarded as a key modifiable risk factor for atherosclerosis and cardiovascular disease (CVD). LDL-C can deposit in arterial walls, forming plaques that narrow arteries and increase the risk of heart attack and stroke. Meanwhile, high-density lipoprotein (HDL-C) is considered “good” cholesterol because it helps transport cholesterol away from the arteries to the liver for excretion. Several factors can increase the level of cholesterol in the blood, as indicated below

    Factors That Contribute to Elevated Cholesterol

    • Poor diet
    • Lack of Physical Exercise
    • Excess body weight
    • Smoking increases cholesterol profile, and excessive alcohol increases triglycerides
    • Genetic traits
    • Chronic stress and poor sleep
    • Diet low fiber

    To decrease high cholesterol in the blood, it is important to make positive changes to health behaviors by following the strategies below:

    Strategies to Decrease High Cholesterol Levels

    • Reduce intake of saturated and trans fats, and substitute with MUFA and PUFA-rich foods such as fatty fish(Salmon and Mackerel), olive oil/canola oil, Avocado/nuts

    A study by Okobi et al. (2023) found that an avocado-rich diet can lower total cholesterol (TC) and low-density lipoprotein (LDL) levels.

    • Increase consumption of food high in soluble fiber, such as oats, fruits, apples, and legumes.
    • Regular aerobic exercise for 150 minutes/week lowers LDL and triglycerides and improves HDL.
    • Losing excessive weight will improve LDL profiles.
    • Quitting smoking will improve cardiovascular health and HDL levels

    Seven ways to create a meaningful impact on the health and well-being of others

    Our connections with family, friends, and colleagues are crucial. Individuals who have strong social connections and supportive relationships are more likely to adopt healthy lifestyles and effectively cope with stress, anxiety, and depression, especially during difficult times. A supportive network of family members, close friends, and colleagues provides a sense of belonging and emotional support.

      Ways to create meaningful impacts are;

    1.Showing kindness: Providing a listening ear, checking in on them, offering assistance, or simply sharing a smile can profoundly influence the overall well-being of others.

    

    2. Promoting physical activity: Encouraging others to participate in physical activities such as organizing sports events, walking or running together, or engaging in group activities can enhance physical and social well-being.

    

    3. Spreading awareness and education: Educating others about healthy lifestyle choices, including proper nutrition, exercise, and stress management, can empower them to make positive life changes.

    

    4. Promoting a healthy diet: Sharing recipes, discussing healthy eating habits, organizing cooking classes, and advocating for nutritious foods can encourage healthier dietary choices.

    

    5. Supporting access to healthcare: Being present for others during difficult times is crucial and can significantly improve their lives. Providing transportation to healthcare facilities encourages them to seek professional help when needed, and assisting with paperwork can make access easier.

    

    6. Advocating for policy changes: Supporting policies and initiatives that promote public health, such as mental health services, water regulation, and access to healthcare, can have a broad impact on the well-being of entire communities.

    

    7. Assisting those with chronic illnesses: Offering understanding and support to individuals with chronic health conditions can help them manage their conditions and enhance their quality of life.

    

    Contributing factors to the High Obesity Rates Among African American Women

    Research reports that American women are disproportionately affected, with the highest obesity rates among all groups in the U.S. About 80% are classified as overweight or obese.

    Disparities in weight loss

    Research indicates that African American (AA) women tend to lose less weight compared to their Caucasian counterparts.

    Contributing Factors

    The contributing factors to the disparities are;

    • Limited access to nutritious food
    • Inadequate health insurance
    • Lack of safe spaces for physical activity

    Barriers to Weight Management

    Challenges that hinder weight management efforts include:

    • Personal beliefs
    • Limited time
    • Family dynamics
    • Lack of motivation
    • Financial constraints

    Cultural Influence on Body Image

    Cultural norms within the AA community, which often embrace larger body sizes and promote a positive body image, can also influence health behaviors. While fostering a positive body image has psychological benefits, it may reduce motivation to maintain a healthy weight. In Black culture, obesity and being overweight are often considered acceptable and carry little to no stigma. Cultural perspective may partially explain why general health promotion efforts are less effective in this community. The study reports that many Black female students aim to embody the culturally valued “thick and curvy” figure, consuming specific foods to shape their bodies while avoiding activities that might result in weight loss.

    Why it may be difficult to seek care

    A deep-rooted distrust of the healthcare system makes it difficult for many AA women to seek medical advice or treatment.

    Physical inactivity as a health risk factor

    Underestimating body weight can reduce engagement in healthy behaviors, such as regular physical activity. Physical inactivity is a major contributor to non-communicable diseases and mortality, emphasizing the need to address these issues within the AA community.