By how much can wearing a helmet when riding a bicycle reduce the risk of head injury?

a.
85 percent

b.
10 percent

c.
15 percent

d.
40 percent

In multiple sclerosis, the immune system destroys the substance that coats and protects nerve fibers in the brain and spinal cord. this causes inflammation and injury to the nerves, and the axons don't conduct impulses as well.

Is it bad to have a headache all day long?

Calculate alex’s tee. alex has a bmr of 1,300 calories and he exercises lightly. his tee is .