According to the Light Concept, testosterone levels are higher in which season?

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Multiple Choice

According to the Light Concept, testosterone levels are higher in which season?

Explanation:
Longer daylight hours drive seasonal shifts in reproductive hormones. The Light Concept posits that more light reduces melatonin production, which in turn lifts the inhibition on the hypothalamus to release gonadotropin-releasing hormone. That increased GnRH stimulates the pituitary to release luteinizing hormone, leading the testes to produce more testosterone. Because summer has the longest days, this pathway is most active then, resulting in higher testosterone levels. In contrast, shorter winter days keep melatonin higher for longer, dampening GnRH signaling and lowering testosterone, with spring and autumn falling in between. So, under the Light Concept, testosterone tends to be higher in summer.

Longer daylight hours drive seasonal shifts in reproductive hormones. The Light Concept posits that more light reduces melatonin production, which in turn lifts the inhibition on the hypothalamus to release gonadotropin-releasing hormone. That increased GnRH stimulates the pituitary to release luteinizing hormone, leading the testes to produce more testosterone. Because summer has the longest days, this pathway is most active then, resulting in higher testosterone levels. In contrast, shorter winter days keep melatonin higher for longer, dampening GnRH signaling and lowering testosterone, with spring and autumn falling in between. So, under the Light Concept, testosterone tends to be higher in summer.

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