What Causes Dry Eye?

There are many causes of dry eye, including symptoms related to aging, certain prescriptions, and environmental factors like sunlight. Dry eyes can have significant impacts on daily life, including work, physical activity, reading, watching television, and eating. When you blink, your tears lubricate your eyes and wash away any debris. Unfortunately, your tears cannot evaporate …

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How Testosterone is Being Studied in Healthy Men

Testosterone is a hormone that is essential for many functions in the human body. It is involved in developing male reproductive tissues and maintaining muscle mass and bone density. Testosterone levels decline with age, which can lead to several health problems. Recent studies have shown that testosterone replacement therapy can improve some effects of aging, …

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