What to know about hair growth

The rate of a person’s hair growth depends on several factors, from genetics to what they eat. Find out more about the process of hair growth and what may affect its speed here.

How long you can live without water

The human body requires water to function properly. The ideal amount a person needs depends on several factors including age, sex, and physical activity levels. Learn more here.

How Many Calories Should I Eat?

The number of calories people should eat each day depends on several factors, including their age, size, height, sex, lifestyle, and overall general health. A physically active 6ft 2in male, aged 22 years, requires considerably more calories than a 5ft 2ins sedentary woman in her 70s. Recommended daily calorie intakes also vary across the world…