Your heart is incredibly hardworking: It beats approximately 100,000 times a day, pumping about 5 liters of blood per minute through 60,000 miles of blood vessels.
Babies have more bones than adults: Babies are born with around 300 bones, some of which fuse together as they grow, resulting in 206 bones in adulthood.
Your skin is your largest organ: It accounts for about 15% of your body weight and replaces its entire surface every month.
You can't tickle yourself: The surprise element is gone, making it impossible.
Your unique tongue print: Like fingerprints, every person has a unique tongue print.
Human teeth are as tough as shark teeth.
The word "muscle" comes from "little mouse": Ancient Romans thought flexed bicep muscles resembled small mice.
Your nose is your personal air-conditioning system: It warms cold air, cools hot air, and filters impurities.
Your height varies throughout the day: You are about 1cm taller in the morning because the cartilage between your bones compresses during the day.
The human brain operates on surprisingly little power: It uses 12 to 25 watts, enough to light an LED bulb.
You shed a lot of skin: Most people shed up to 35 kilograms of skin in their lifetimes.
The smallest bones are in your ear: The malleus, incus, and stapes are tinier than a grain of rice.
Your stomach lining replaces itself rapidly: Every 3-4 days, to protect itself from the strong digestive acids.
Humans are the only animals who cry due to emotion.
Your belly button is a germ hotspot: It can be home to nearly 2,400 different types of germs.
Fingers don't contain muscles: The muscles in your forearms move the tendons in your fingers.
Optimism can prolong your life: Studies show a connection between increased optimism and decreased levels of death from cancer, disease, infection, and stroke.
A messy desk might mean a creative mind: Research suggests people with clutter on their desks may be more creative.
Chewing aspirin can quickly thin your blood: It takes about five minutes.
Coffee can reduce feelings of depression: The caffeine can boost your mood.
Owning a dog may reduce heart disease risk: Pets can improve mental health and potentially lower blood pressure and cholesterol.
Stress increases your risk of type 2 diabetes: Due to increased cortisol levels.
The body can produce enough heat to boil water: In just half an hour, it generates 350,000 joules of energy.
Your nose can remember 50,000 different smells.
Exercise can improve deep sleep: Moderate exercise can lead to more restful sleep.
Sleep affects almost every tissue in the body: Including growth, hormones, immunity, and cardiovascular health.
Adequate sleep reduces the risk of many diseases: Like high blood pressure, stroke, diabetes, and heart disease.
Laughter decreases pain and releases happy hormones (endorphins).
Laughter increases oxygen consumption.
Laughter can impact blood sugar levels: One study found it lowered glucose increases after a meal.
You can lose 3% of your body weight in fluids before feeling thirsty: It's better to check urine color for hydration.
The "eight glasses of water" rule is a myth for some: Hydration needs vary based on activity, body weight, and temperature.
You get hydration from food: Up to 20% of your hydration comes from foods like soups and produce.
You can overdose on water: This condition is called hyponatremia.
Morning sunshine may help with weight loss: Exposure to light early in the day can be linked to a lower BMI.
Drinking enough water may reduce heart attack risk.
Deep breaths improve overall health: They can relieve anxiety, reduce pain, improve immunity, lower blood pressure, and increase energy.
Gardening is a great workout: Bending, squatting, and lifting in the garden are real-life exercises.
Proper sleep can prevent disease: It lowers the risk of type 2 diabetes, high blood pressure, obesity, heart attack, and stroke.
The human body has about 600 muscles.
Your blood makes up 7%-8% of your body mass.
It takes about 20 seconds for a red blood cell to circulate through your entire body.
Veins have one-way valves to ensure blood flows only towards the heart.
Children have more taste buds than adults: You're born with about 10,000, but you start to lose them after age 50.
The strongest muscle in terms of force is the jaw muscle (masseter).
Your left lung is slightly smaller than your right: To make space for your heart.
The brain itself does not feel pain.
Identical twins have extremely similar scents due to shared DNA.
Humans share 60% of their DNA with bananas (meaning similar basic cellular functions).
Lack of sleep can be more detrimental than starvation: Chronic sleep deprivation is linked to serious health conditions.