Many people think sleeping next to someone is just about comfort or love — but science says it can have a much deeper effect on your body and mind than most realize.
Studies show that sharing your bed with another person can influence your heart rate, stress levels, and even your immune system. When two people sleep close together, their breathing and heartbeat often begin to synchronize, creating a calming rhythm that promotes deeper sleep.
But there’s a flip side too. If your partner tosses and turns, snores, or stays up late on their phone, it can disturb your rest, leading to fatigue, irritability, and even weakened focus during the day. Long-term, poor sleep can increase the risk of health issues like high blood pressure and anxiety.
