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The evening is coming to an end, the eyes are closing, but the inner rhythm does not always follow the same scenario. On the wrist, the sensors record signals that jostle what we thought of knowing the night. Between friendly habits and expected rest, another story is taking shape: what really says the heart after the last glass?
When alcohol is invited into your sleep
A new study highlights an intriguing phenomenon: why heart rate Sometimes gets carried away at night after a few glasses. Led by the Ludwig Maximilian University of Munichit explores the subtle but very real effects of alcohol on the night cardiovascular health. The results are both striking and worrying.
A direct effect on the heart and sleep
When consumed, even in moderate doses, alcohol continues to act far beyond the early hours. According to this research, the 40 participants saw their heart rate increase on average of 3 BPM During their sleep. Reason: alcohol disrupts the balance between sympathetic nervous system and the parasympatheticthus affecting cardiovascular regulation.
Moreover, even if the sleep phases, like the deep sleepare not significantly modified according to objective measures, many participants reported a perceived quality more mediocre sleep. This interaction between perception and instrumental data constitutes a major research track.
When technology gets involved
To obtain these fine measures, the researchers used Connected watchestransformed into study tools. These portable devices followed in real time the heart rate of 40 adults, aged 28 to 45 years old and overall healthy. With 63 % womenthe sample offers a more inclusive perspective.
This use of connected technologies opens the way to more ambitious work, with extended cohorts and analysis longitudinal To deepen the understanding of the nocturnal effects of alcohol.
What should you pay attention to?
Should we worry about this slight increase in heart rate? Even if +3 BPM may seem modest, it is potential cardiovascular stress. According to theWorld Health Organization, Reduce alcohol consumption There remains a universal recommendation to limit the risks of long -term heart disease.
- Pay attention to subjective quality Sleep: A sleep deemed normal by the sensors can be felt as less restful.
- Excess, even moderate, can produce a cumulative effect On the heart and the nervous system over time.
What message to retain?
These results show that daily gestures, like lifting your glass with friends, discreetly but clearly influence our physiology. They also emphasize that Connected technologiessuch as smart watchesare allies to better understand our body. If your heart beats a little faster after one or two glasses, it is not necessarily the excitement of the evening.
Source: https://www.mdpi.com/2072-6643/17/9/1470