COLD SHOWERS - Cold water? Too shocking for the heart - TIP
I think it's actually the opposite - I think cold showers boost your physical power and immune system including your heart's strenght - Think about sauna cold/warm practices in Scandinavia - Yes, you can start with small steps to avoid too much of a shock on your body - build it up gradually - If you are unsure, start with small doses, put your arm first, or your head first - Stretch your comfort level of course but still listen to your body