At Mercola.com, Dr. Joseph Mercola discusses astaxanthin and keeping your arteries young. He writes:

• Heart disease develops quietly over years as blood vessels lose resilience under oxidative and inflammatory stress, long before symptoms appear
• Astaxanthin supports heart health by protecting cell membranes and blood vessels from damage at the cellular level, rather than targeting surface-level markers alone
• Research shows astaxanthin helps maintain flexible blood vessels, steady blood flow, and healthier heart tissue during periods of high stress or reduced oxygen
• The benefits of astaxanthin depend on using natural sources and having it present before and during cardiovascular strain, not after damage has already occurred
• Reducing oxidative stress through diet, improving sleep timing, and supporting natural vitamin D production all reinforce the same vascular repair pathways astaxanthin supports

Read more here.