Sperm are best produced at a temperature slightly below the temperature of the rest of your body, that is the purpose of having external testicles (rather than inside of your body). To help regulate the temperature of your testes, your body will raise them if they are too cold or lower them some if they get too hot.
hermit crabs bathe in warm water
Yes cold water on the testicles help the sperm and testosterone to increase.
Stay out of the sun and bathe with cold water
Some women may choose to bathe in cold water for various reasons, such as to invigorate their skin, improve circulation, or provide relief from heat. Cold water baths can also have potential health benefits like reducing inflammation and boosting immunity.
Lukewarm. Not too warm, but not cold. ex: Bathing a guinea pig in the same temp as you bathe a dog is too hot.
In summer, they bathe in the cold water to cool off, and in winter their fur helps keep them warm.
If you need to bathe the snake (for example to aid in shedding) - the water should be warm to your touch - If it feels too hot to you (or too cold) - you need to adjust the temperature.
It is not recommended to bathe a dog with cold water, as it can cause them discomfort and may lower their body temperature. It is better to use lukewarm water for bathing dogs to ensure they are comfortable throughout the process.
Cold water has a higher density than warm water, which causes it to have less volume for the same mass. This is because the molecules are closer together in cold water, making it more compact.
Water vapor in the air searches and sticks to cold areas. Therefore, a lot of water vapor grouping together will form water.
There's bathing and there's putting them in water. Put some warm water in the bath tub and let her hang out for a few minutes. Don't leave her unattended and don't the water get cold.
When hot and cold water are mixed together, the water reaches a temperature that is between the initial temperatures of the hot and cold water. This is due to the principle of thermal equilibrium, which states that heat energy will transfer from the hotter substance to the cooler substance until they reach the same temperature.