Learn how to check your blood sugar at home accurately, from fingerstick basics to CGMs, plus tips to reduce discomfort and avoid common testing errors.
Ancient DNA is helping scientists trace tuberculosis back thousands of years, revealing how farming and animal contact shaped one of history's oldest diseases.
Dark spots on skin have different causes and treatments. Learn what's behind sun spots, melasma, and post-inflammatory hyperpigmentation, and how to fade them.
Ferulic acid and vitamin C are different compounds, but they work better together. Here's what each one does and why the combination shows up in so many serums.