Dr Niraj Gechode on Instagram: "Many men notice that their testicles feel smaller in winter ❄️ and larger in summer ☀️ — and this often creates unnecessary anxiety 😟 In reality, this is a completely normal physiological response called scrotal thermoregulation 🌡️ The testicles require a temperature slightly lower than core body temperature for proper sperm production 🧬. To maintain this, the body uses specialized muscles like the cremaster muscle and dartos muscle, which adjust the position a