Are tear troughs caused by staying up late?
Generally, staying up late may worsen or trigger tear troughs, but not all tear troughs are caused by lack of sleep. If you have concerns, it is advisable to consult a healthcare professional in advance. Specific analysis is as follows:

If the tear trough has recently appeared and is accompanied by frequent late-night habits, it is likely related to sleep deprivation. Staying up late slows blood circulation around the eyes, leading to blood stagnation and darkening. It also accelerates the loss of moisture and collagen in the periorbital area, causing the skin to become thinner and less elastic, thereby making tear troughs more visible or deeper. In such cases, symptoms may improve after adjusting sleep patterns.
If tear troughs have been present for a long time or if similar conditions exist within the family, they are more likely due to genetic factors or aging. Genetic traits can result in naturally shallower bone structure around the eyes, while aging causes fat pads to atrophy and skin to loosen—both contributing to the formation of tear troughs. In these instances, staying up late may only exacerbate existing conditions, and simply improving sleep habits may not fully resolve the issue.
To prevent worsening, avoid chronic sleep deprivation and ensure adequate rest. Gentle eye-area massage may help promote blood circulation. If tear troughs significantly affect appearance, consult a qualified physician to discuss appropriate treatment options and avoid using unproven home remedies.