sex, health, evolution

Pair-bond

Women have higher level of parental effort

Men invest relatively little in one child

Sexual Selection theories

Parental Investment

expenses (cash, time, attention) benefit one offspring at the cost of the parents ability to invest in other offspring or reproductive opportunities

Pair bond

enduring, selective social and sexual affiliation between two mature individuals—typically lasting longer than a single reproductive cycle—that facilitates cooperation, resource sharing, and often bi-parental care of offspring.

Menopause

12 months without a period

Symptoms: Hot flashes, night sweats, trouble sleeping, joint and muscle discomfort, pain during sex, moodiness and irritability, difficulty concentrating

Premenospause

While the women has her normal periods

Perimenopause

Irregular periods, weight gain, night sweats, hot flashes, loss of libido

Menopause

no more periods, Vaginal discomfort, Breast cancer, depression

Postmenopause

Vaginal discomfort, osteoporosis, urinary infections, heart disease