Medicine
Articles, guides and definitions about Medicine — part of Health & Wellness on Worldlession.
Health & Wellness
General health information written in plain language. For general information only — not a substitute for professional medical advice.
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Subcategories
Nutrition
Articles, guides and definitions about Nutrition — part of Health & Wellness on Worldlession.
Fitness
Articles, guides and definitions about Fitness — part of Health & Wellness on Worldlession.
Mental Wellness
Articles, guides and definitions about Mental Wellness — part of Health & Wellness on Worldlession.
Public Health
Articles, guides and definitions about Public Health — part of Health & Wellness on Worldlession.
Medical Definitions
Articles, guides and definitions about Medical Definitions — part of Health & Wellness on Worldlession.
Healthy Living
Articles, guides and definitions about Healthy Living — part of Health & Wellness on Worldlession.
Articles in Health & Wellness (3)
What Is Mindfulness?
Mindfulness means paying deliberate, non-judgmental attention to the present moment. Learn what it is, what the evidence says, and how to begin.
How Does the Human Heart Work?
Your heart is a muscular pump that moves blood around your body non-stop. Learn about its chambers, valves and the electrical system that keeps it beating.
How Do Vaccines Work?
Vaccines train your immune system to recognize and fight diseases before you encounter them. Learn how they work and why they matter for public health.
Frequently asked questions
How is mindfulness different from meditation?
Meditation is the broader category of contemplative practices; mindfulness is one approach within it, focused on present-moment awareness. Many people practice mindfulness through seated meditation, but it can also be woven into ordinary activities.
How big is the human heart?
About the size of a clenched fist, though it varies with body size. Despite its small size, its muscular walls generate enough force to circulate blood throughout the entire body.
Can a vaccine give you the disease it prevents?
Licensed vaccines cannot cause the disease they protect against. Inactivated, subunit and mRNA vaccines contain no live germ at all, and live-attenuated vaccines use germs weakened so they cannot cause illness in people with healthy immune systems.