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...energy. SPEAKER 1 What are the symptoms? SPEAKER 2 With estrogen receptors all over the body, its decline causes many symptoms, such as affecting cognitive function through producing brain fog, forgetfulness, mood swings, and irritability. In addition to the signature hot flushes and night sweats, women also experience dry or itchy skin, decreased libido, vaginal dryness,...

...energy factories called mitochondria, in addition to the cell's DNA - packaged into twenty three chromosomes. At the tip of the sperm's head is a package that contains enzymes that break down protective layers on the egg's surface. Not all human sperm cells look the same. Some have two heads or no heads, some have huge heads, some have small tails or no tails, others may...

...energy in your muscles if you run in the wrong direction! • Contents of the stomach/bowel/bladder may be jettisoned. This could distract the attacker and 'lightens the load' the body has to carry in escape. The 'fight or flight' mechanisms listed above were invaluable in primitive times, when hunting prey or escaping from predators, and were essential daily activities;...