Question

Why do we sweat?

[Review question: Pg. No: 243]

Answer 1

• The human body functions normally at a temperature of about 37°C.
• When it gets hot sweat glands start secreting sweat, which contains water with small amounts of other chemicals like ammonia, urea, lactic acid and salts (mainly sodium chloride).
• The sweat passes through the pores in the skin and gets evaporated, which reduces the body temperature.