Modern arrow with plastic fletchings and nock. An arrow is a shafted projectile that is shot with a bow. It predates recorded history and is common to most cultures. An arrow usually consists of a shaft with an arrowhead attached to the front end, with fletchings and a nock at the other.
While estrogen levels will decrease during menopause, the truth is, estrogen levels do not fall appreciably until after a womanâs last period. In fact, far more women suffer from the effects of âestrogen dominanceâ during the transition â that is, they have too much estrogen relative to progesterone. And some women can suffer from the symptoms of estrogen dominance for 10 to 15 years, beginning as early as age 35.
For women who are experiencing menopause, fatigue is typically due to hormone fluctuations. Estrogen and progesterone, the two main hormones influenced by menopause, play a key role in sleep functions. When they are thrown out of balance, however, a woman's sleep cycle is disturbed, which often leads to fatigue.