The risks of being too slim
If you weigh under 45kg and are more than 1.6m tall, then you are considered to be underweight. Studies have shown that although being underweight, does not actually cause early menopause, your risk of early menopause is increased by about 40%. Early menopause is best described as naturally ceasing to have periods before the age of 45. Symptoms of normal-range menopause mainly begin around the age of 50 to 55.