1. No Smoking: Avoiding smoking can help protect blood vessels, as smoking increases the fragility of blood vessels and contributes to atherosclerosis. 

2. Healthy Eating Habits: Protecting blood vessels is key to longevity, and maintaining a healthy diet is essential.

Consuming foods that accelerate blood vessel aging, such as high-sugar, high-fat, fried, and high-salt foods, can increase the risk of blood vessel blockage and narrowing.

3. Proper Hydration: To maintain healthy blood vessels, it is important to stay hydrated throughout the day rather than waiting until you feel thirsty.