# Can Daytime Sleepiness Predict Weight Gain? New Research Highlights Surprising Gender Differences
The relationship between how much we sleep and how it impacts our health has always been a hot topic in scientific research. But what if daytime drowsiness—the inability to stay awake during the day—could actually predict future weight gain? A recent study, published by *PsyPost*, dives deeper into this fascinating link and introduces a unique angle few have explored: how sex differences shape this relationship. At Research Intel, we’re committed to bringing you cutting-edge insights and tools to adapt forward-thinking research into real-world strategies, whether that’s through **[usability testing](https://researchintel.co.uk/usability-testing/)** or accessible design.
## Unpacking the Relationship Between Sleepiness and Weight Gain
While we generally understand that reduced physical activity and poor sleep patterns can lead to weight gain, the latest research adds another dimension—the impact of biological sex on this equation. According to the findings, men and women experience sleepiness-associated weight gain differently. For men, the association appears stronger and more direct, while women face subtler, perhaps hormonally moderated, impacts.
These differences may stem from how hormonal fluctuations affect metabolism, appetite regulation, and energy levels.