Health is the foundation of everything; only when you're healthy can you have a good appetite. However, with so much health information available today, most people don't know if this information is reliable. Below, we've compiled a lot of health knowledge that only doctors understand. If you find it useful, remember to save it!

First, protect your eyes from the sun.

In daily life, not only does your skin need sun protection, but your eyes do too! Ultraviolet rays can directly penetrate the retina, increasing the risk of cataracts, pterygium, macular degeneration, and other eye diseases over time. Therefore, wearing sunglasses when going out is not only stylish but also protects your eyes.

2. Do not use eye drops indiscriminately.

When people stare at computer screens for too long, their eyes easily feel dry and uncomfortable. A few drops of eye drops can provide immediate relief. However, what you may not know is that eye drops also contain preservatives and other ingredients. If you use eye drops for a long time, it may actually harm your eyes. The most important thing is to effectively protect your eyes and let them rest.

Third, vaginal health is not simply a matter of washing.

When we think of feminine washes, we often picture the advertising slogan "Washing makes you healthier." However, the reality is that frequent use of vaginal douches can disrupt the vaginal flora balance, actually making things worse. For everyday hygiene, plain water is sufficient.

IV. Frequent urination does not necessarily mean kidney problems.

Many people are particularly sensitive to their kidney health, and often suspect a kidney problem if they experience increased urination recently. It's important to know that urine volume changes with water intake and sweating; drinking more water naturally increases urine output. Conversely, decreased urine output is more often a sign of kidney problems.

5. Babies under 1 year old do not need pillows.

For new parents, here's a tip: babies under one year old don't need pillows when they sleep because their cervical spine isn't fully developed yet. Using the wrong pillow can actually increase the risk of Sudden Infant Death Syndrome (SIDS).

6. Do not rely on laxative teas for constipation.

Many people who frequently suffer from constipation may have considered laxative products, such as laxative teas. However, it's important to note that many laxative teas contain stimulant laxatives. Long-term use can potentially lead to electrolyte imbalances such as melanosis coli and hypokalemia. Therefore, people who frequently suffer from constipation should not use laxative teas as their first choice for relieving constipation.

7. Do not apply toothpaste or soy sauce to burns...

Applying toothpaste, soy sauce, or lard to a burn is ineffective. Just remember: 1. Rinse with plenty of cool water; 2. Remove clothing from the burn area; 3. Continuously soak the burn in cold water; 4. Cover and secure the burn with a clean towel or gauze; 5. If the burn is severe, go to the hospital as soon as possible.

8. Don't use face masks every day.

We often see celebrities using face masks every day on Weibo. Here's a reminder: our skin has a protective layer. If you use face masks too frequently, it can cause the stratum corneum to become overhydrated, leading to damage, thinning of the skin, and impaired barrier function, which is actually bad for your skin.

9. Taking collagen supplements does not improve your appearance.

Even if we consume a lot of collagen, it still needs to be broken down and absorbed; it cannot directly benefit the skin. For better skin, cleansing, moisturizing, and sun protection are key.