"Does the cold damage sperm?" This kind of question becomes more common during winter. The answer might be surprising: cold itself doesn't harm sperm. What really damages them is prolonged exposure to high temperatures. This article explains the importance of "temperature management" for men preparing for pregnancy, correcting common misconceptions and providing useful tips.

1. First, let's clarify: Sperm are afraid of "heat," not "cold".

Sperm need an environment slightly cooler than body temperature (around 34–35°C) to be produced effectively. Therefore, raising the temperature of the scrotum is the main culprit. However, being in a cold environment doesn't mean the scrotum becomes too cold to produce sperm-the body will automatically adjust. So, the idea that "winter can damage sperm" is incorrect.

Where does the real "heat" that damages sperm come from?

• Sitting for long periods: Working or driving for more than an hour can cause local overheating.
• Tight-fitting pants/jeans: They compress the area and reduce air circulation.
• Saunas/high-temperature baths: These directly increase temperature, making sperm production more sensitive.
• Posing laptops on legs: This creates localized heat sources.
• Obesity: Fat acts as a heat barrier, causing the scrotum to retain higher temperatures.

3. What should we be careful about in winter?

In cold weather, people often use heaters, take hot baths, or wear thick, tight-fitting clothes. These activities create localized heat. So, in winter, what we need to avoid is overheating, not freezing.

4. A list of temperature management tips:

• Get up and move around every hour of sitting.
• Choose loose, breathable cotton underwear.
• Suspend or limit saunas and high-temperature baths.
• Maintain a healthy weight to reduce abdominal fat, which can act as a heat barrier.
• Avoid placing laptops directly on legs.

5. How long will it take to see results?

The sperm production cycle lasts about 74 days. Adjustments like temperature control usually take 2–3 months to be noticeable in semen tests. It's not immediate, but it's worth trying.

6. A reminder from Leila Wa

Men's fertility issues are often overlooked, but temperature management is one of the easiest and most cost-effective methods to address. Making this a part of your daily routine is more effective than any "homemade remedies."