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Which of the following is NOT a hormonal method of contraception?
Free Radicals
Unstable atoms or molecules that can damage cells, leading to aging and diseases, due to their unpaired electrons and reactivity.
Neurons
Nervous system cells dedicated to conveying information by means of electrical and chemical signals.
Waking Metabolism
The rate at which the body burns calories while awake and active, contributing to overall energy expenditure.
Circadian Rhythm
The innate, internal mechanism that controls the cycle of sleep and wakefulness, recurring approximately every 24 hours.
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