Summer yoga helps you get in good shape.

Two weeks ago, after being scalded by boiling water, a big blister burst, but the skin did not fall off. I've been applying it with burn cream ever since. Once, after not applying for half a day or so, the blister skin dried up and then split, revealing pink granulation tissue inside. Now, after applying burn ointment every day, the skin is dry and brown, but it does not fall off. After three days or so, the granulation tissue did not change.

Wearing sachets can prevent children from catching a cold.

Teenagers suffer from presbyopia due to lack of sex education and psychology.