Research

Hormonal

Continuous positive airway pressure (CPAP) therapy reverses oxidative stress and improves endothelial function in patients with obstructive sleep apnea (OSA).

If you have OSA, using CPAP therapy nightly is the most effective way to protect your heart and blood vessels by reversing the oxidative stress caused by breathing pauses. While it can be uncomfortable at first, it is superior to antioxidant supplements for treating the root cause.

GoodSupportsHIGH confidence
Continuous positive airway pressure therapy reverses oxidative stress in OSA. ... most changes in biomarker studies were rapidly reversible after only some nights of CPAP ... CPAP therapy decreases the release of superoxide from leukocytes and increases circulating levels of nitrite and nitrate.
Hans-Joachim Eisele et al. · Oxidative Medicine and Cellular Longevity · 2015

Why this rating

The paper reviews multiple human studies showing reversible biomarker changes, though it notes methodological flaws like lack of sham controls in some.

Source

Obstructive Sleep Apnea, Oxidative Stress, and Cardiovascular Disease: Evidence from Human Studies

Hans-Joachim Eisele et al. · Oxidative Medicine and Cellular Longevity · 2015

DOI 10.1155/2015/608438

narrative_reviewCited 187×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →