Scientists Unveil Secrets of Biological Clocks in Microgravity
Scientists are studying biological clocks in microgravity to understand life on Earth and inform future space missions by SpaceX. The research, led by Dr. Amita Sehgal at UC San Diego, investigates how these internal timers adapt in space environments, with implications for astrobiology and astronaut health.
On Earth, our biological clocks, or circadian rhythms, are synced with the 24-hour day-night cycle, primarily regulated by light exposure and hormones like melatonin. However, in microgravity, the absence of a regular day-night cycle can disrupt these rhythms, leading to sleep disturbances and other health issues for astronauts.
To regulate their biological clocks in space, astronauts use strategies like artificial lighting systems that mimic Earth's day-night cycle and melatonin supplements. Yet, the effects of microgravity on biological clocks include disruptions in sleep patterns, changes in hormone levels, and alterations in metabolism. A study on fruit flies conducted by Dr. Sehgal's group provides significant insights into how circadian rhythms adapt in space environments, which could advance our understanding of life on Earth and inform future space missions and exploration efforts by SpaceX.
The research on biological clocks in microgravity has far-reaching implications for astrobiology and space exploration. By understanding how these internal timers adapt in space, we can improve astronaut health and potentially uncover secrets about life on Earth and beyond.
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