Vitamin D is important for bone health and may play a role in the increased risk of type 1 diabetes, cancer, multiple sclerosis, and high blood pressure in people who live at a latitude of greater than 40 degrees north or south. Individuals living at this latitude can obtain vitamin D from a few dietary sources, as well as
synthesize it in the skin when exposed to sunlight from April until October.

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .

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.

a1 = unhealthy

a2= healthy

a3= healthy