1 . Take these easy steps to keep your eyes healthy.

EatWell

    1    Nutrients (营养物) like omega-3 fatty acids, lutein, zinc, and vitamins C and E might help prevent age-related sight problems. To get them, fill your plate with green leafy vegetables, oily fish, eggs, and oranges.    2    That lowers your odds of obesity (肥胖) and related diseases like type 2 diabetes, which is the leading cause of blindness in adults.

Quit Smoking

It makes you more likely to get cataracts (白内障), among many other medical problems. If you’ve tried to kick the habit before only to start again, keep at it.    3    Ask your doctor for help.

Use Safety Eyewear

If you use dangerous materials on the job or at home, wear safety glasses. Sports like ice hockey, racquetball, and lacrosse can also lead to eye injury.    4    Helmets with protective face masks will protect your eyes.

Look Away From the Computer Screen

Staring at a computer or phone screen for too long can cause trouble focusing at a distance, dry eyes, headaches, and neck pain. To protect your eyes, you can try the following strategies. Make sure your glasses are up to date and good for looking at a computer screen. Choose a comfortable, supportive chair. If your eyes are always dry, try using artificial (人工的) tears.     5    Look 20 feet away for 20 seconds. Get up at least every two hours and take a 15-minute break.

9 . Wisdom teeth won’t make you smarter.    1     These teeth are in the very back of your mouth, two on top and two on the bottom as part of a complete set of 32 adult teeth.

Wisdom teeth often cause problems due to their late eruption and limited space in jaws. As a result, they may become impacted, meaning they are unable to fully emerge from the gums (牙龈). This impaction can give rise to various issues, including pain and crowding of nearby teeth.    2    .

Before the surgery, dentists will carefully evaluate your specific situation to determine the most appropriate approach. During the procedure, dentists will numb (麻醉) your gum to ensure minimal pain.    3    After that, they’ll clean the area and pack it with cotton to stop bleeding.

    4    Everyone responds differently. In general, you can expect mild discomfort, slight bleeding, facial swelling (肿), and other common complications following the surgery, as your mouth needs a few weeks to completely recover.

Here are some tips for proper healing. Leave cotton in place for about 30 minutes and hold a cold pack against your jaw to reduce pain immediately after surgery. For the following days, don’t consume hard spicy food like nuts and peppers.    5    That way, your teeth won’t hurt when you eat and food bits won’t get stuck in your mouth.

10 . Wisdom teeth seem like a biological mistake, leading to millions of surgeries per year. But for some people, these “extra” teeth come up just fine, while others don’t get them at all. What’s the biological story here?

According to the standard story, before surgical intervention, people with impacted wisdom teeth expired. Those lacking the problematic teeth increased in number, passing on genes for reduced numbers of teeth to future generations. Today, thanks to dental surgeons, individuals with impacted teeth survive and contribute to the gene pool.

But decades of research challenges this survival-of-the-toothless explanation. Many scholars now propose that wisdom teeth problems originate from our eating softer foods as children, made possible by farming and industrialization. Here’s the theory: Compared to wild resources consumed by hunter-gatherers, agricultural and processed foods are softer. Hard food during childhood seems to stimulate jaw growth, allowing mouths to grow large enough for more teeth. Soft food doesn’t require enough of a chewing workout to maximize jaw growth potential.

Around 12,000 years ago, humans began to experiment with farming, and this lifestyle ultimately took hold in most societies. Domesticated products, like wheat flour and cow’s milk, make for much softer diets than wild foods. What’s more, the industrialization of food production has really softened our meals. So the idea is that processed and/or agricultural diets reduce the stress on our jaws necessary to result in full growth when we reach early adulthood. By the time we’re reaching adulthood, there may not be enough space to accommodate our final molars (臼齿).

This theory is supported by research. For example, a 201l paper measured skulls housed in museums from six farming and five hunter-gatherer groups. The farmers, raised on softer foods, consistently had shorter jaws, which would have provided less space for tooth formation.

Consequently, many dental scientists recommend parents put some additional raw fruits, vegetables and nuts on kids’ plates, which could potentially prevent later wisdom teeth removals.