The following is false about adolescent calcium needs:

a. about 50% of the calcium in your bones is built up while you are a teenager.
b. women are more likely than men to get osteoporosis.
c. teens do not need to worry about getting enough calcium.
d. all of the above are true.
answer the best you can.

C - Teens do not need to worry about getting enough calcium is false.

The teen years show a growth spurt for most and calcium is the main minerals that strengthens the growing bones. Not enough calcium during those formative years can put the person at and increased risk for developing osteoprosis later in life.

answer: i would say the brain but it seem that you have a brain.

teens need 8-10 hours of sleep. it kind of depends on what time you get up. but prob around 10 or 11 p.m. or 11 or 11: 30 p.m.