1. Risk of ischemic stroke: A study from Utrecht University involving over 16,000 women found that women who experience menopause before the age of 40 have a 1.5 times higher risk of ischemic stroke compared to those who experience menopause between 50-54 years old.

2. Higher risks: A study published in the European Heart Journal based on over 1.

4 million women found that women who experience menopause before the age of 40 have higher average levels of triglycerides, type 2 diabetes, and chronic kidney disease compared to those who experience menopause after 40. 

3. Increased overall risk: An analysis by the University of Queensland in Australia, covering data from 15 studies involving 300,000 women worldwide, found that women who experience menopause before the age of 40 have twice the overall risk of heart disease, angina, and stroke.

4. Avoid extremes: Neither too early nor too late menopause is ideal. Late menopause is associated with higher levels of estrogen, which increases the risk of endometrial, ovarian, and breast cancer. 

5. Ideal menopause age: Data suggests that the optimal menopause age for women is around 49.5 years old, closer to which is associated with better health outcomes.