I've been growing my beard for a year now.
Thats great, I have a really long one myself, I think that people usually only young adult males are able to grow beards. It would be weird seeing a baby grow a beard. 
Yes, also a woman!
Indeed, actually back in ancient caveman times it was a common trait for humans to have hair on their face and entire body like the hair you see on gorillas.
I guess it kept them warm.
It sure did, for most of that time it was eventually lost over time and humans became more hairless and they depended more of the fur coats of animals for warmth. 
So they pretty much evolved to have less hair. How interesting.
Well somewhat, Today from childhood onward both sexes hair pretty much covers almost the entire area of the body.
Yes but it's very light.
Body hair
Body hair, or androgenic hair, is the terminal hair that develops on the human body during and after puberty. It is differentiated from the head hair and less visible vellus hair, which is much finer and lighter in color. The growth of androgenic hair is related to the level of androgens (often referred to as male hormones) and the density of androgen receptors in the dermal papillae. Both must reach a threshold for the proliferation of hair follicle cells.
From childhood onward, regardless of sex,
Beard
A beard is the unshaven hair that grows on the chin, upper lip, cheeks and neck of humans and some non-human animals. In humans, usually only pubescent or adult males are able to grow beards. Some women with hirsutism, a hormonal condition of excessive hairiness, may develop a beard.
Throughout the course of history, societal attitudes toward male beards have varied widely depending on factors such as prevailing cultural-religious traditions and the current era's fashion trends. Some religions (such as Islam