Your blood test comes back normal. Your GP says your iron is fine. But you are exhausted in a way sleep doesn't fix, your hair is coming out in handfuls, and your workout breathing is worse than it was a year ago. The problem may not be your haemoglobin — it may be your ferritin. Ferritin is the protein that stores iron, and it can fall critically low months before anaemia appears. In perimenopause, heavier and more frequent periods accelerate the loss. This is the iron probl

Perimenopause sleep apnea is a hidden but common condition driven by declining estrogen and progesterone. As these hormones drop, airway muscles lose tone, increasing the risk of breathing disruptions during sleep. Unlike classic sleep apnea, women often experience fatigue, brain fog, and night awakenings rather than loud snoring. Understanding the hormonal link is key to getting properly diagnosed and treated before symptoms worsen.

Over 85% of perimenopausal women experience fatigue — not the tiredness of a long day, but a bone-deep exhaustion that sleep doesn't fix. The reason it doesn't respond to rest is because it isn't primarily a sleep problem. It is a cellular energy problem. Estrogen has receptors inside your mitochondria — the factories that power every cell in your body. When estrogen drops during perimenopause, those factories become measurably less efficient. Five hormonal systems drain your