Menopause is a part of a woman’s life. Typically it begins at age 52, according to the Office on Women’s Health. But perimenopause, the transition into menopause itself, can begin much earlier. While some women begin to experience perimenopause in their late thirties, it more commonly begins when a woman reaches her forties.
Chronic fatigue syndrome, known technically as myalgic encephalomyelitis, appears to be caused by any of several factors: infection, hormonal changes, issues with the immune system, or a combination of these. Intriguing new research points to an additional possibility: damage to mitochondria in living cells.