
Intermittent Fasting: Benefits, Risks and What the Evidence Shows
Intermittent fasting can help some adults manage weight, but it is not universally superior. Learn what evidence says about benefits, risks and timing.
Science, health, medicine, research, climate and the environment.

Intermittent fasting can help some adults manage weight, but it is not universally superior. Learn what evidence says about benefits, risks and timing.

Effects of smoking on the body include lung damage, heart disease, DNA injury and cancer risk. See how cigarette smoke causes harm and why quitting helps.

Quitting smoking benefits health at every age. See what happens after your last cigarette, how withdrawal works and which treatments can make quitting easier.

Lifestyle and cancer risk involve more than personal choices. See how tobacco, alcohol, activity, infections and environmental exposures affect prevention.

How alcohol affects the body depends on dose and drinking pattern. Explore effects on the brain, liver, heart, cancer risk and dependence.

Physical activity for older adults helps preserve strength, balance, endurance and independence. Learn how to start safely and progress gradually.

Healthy ageing focuses on preserving function, independence and choice through physical activity, nutrition, prevention, social connection and supportive environments.

Cognitive health in older age involves more than memory. Learn what changes normally, what may signal cognitive decline and how brain health can be supported.

A preventive health checkup should target risks where early action helps. Learn which screenings, vaccines and assessments matter—and when testing can harm.

Reproductive health covers contraception, fertility, sexual health, STI prevention, pregnancy care and informed choices across the life course.

Men’s health includes heart disease, cancer, mental health, sexual health and injury prevention. Learn which risks and screenings matter most.

Why men delay medical care involves more than masculinity. Work, cost, access, symptom recognition and previous healthcare experiences also matter.