The human body’s lungs have a total surface area of about 70 square meters for gas exchange.

Your body’s digestive system can process food in about 6 to 8 hours from ingestion to elimination.

The average human adult has around 5 million hair follicles distributed across the body.

The human body has more than 300 joints, which allow for movement and flexibility.

Your body has a built-in circadian rhythm that regulates sleep and wakefulness.

The human brain is capable of producing about 100,000 chemical reactions per second.

Your body’s muscles are responsible for movement and can contract to exert force.

The human body’s largest organ, the skin, helps regulate body temperature and protect against external threats.

The human body contains about 60% water, which is vital for most bodily functions.

Your body’s average internal temperature is about 98.6°F (37°C).