Physiological aging of 40-year-old women is mainly characterized by menstrual disorders, osteoporosis, skin laxity and so on. 1. Menstrual disorders: After the age of 40, ovarian function will decline and ovulation will be impaired, resulting in irregular menstruation, increased or decreased menstrual flow, abnormal color of menstrual blood and blood clots. 2. Osteoporosis: The accelerated loss of bone calcium in women at the age of 40 may lead to osteoporosis, muscle aging, etc. Some women may also suffer from joint inflexibility and joint pain. 3. Loose skin: with age, the body’s metabolism slows down, coupled with a decline in the body’s antioxidant function, the body’s free radicals will cause damage to the cells, which may appear loose skin, spots and other symptoms. Natural physiological aging is normal, no need to worry too much, it is recommended that women maintain a good psychological state, pay attention to rest, ensure adequate sleep, while paying attention to their own changes, such as symptoms of discomfort should be timely medical examination.