Problem: Article: To stay mentally and physically quick, you must take care of yourself. Exercise at least 3 times a week, or more if possible. Exercise increases blood flow to your entire body, including your brain. Your body will thank you with speedier reaction times and plenty of endorphins. If you are not used to exercising, work your way up with shorter simpler exercises. Start with a 15 to 30-minute walk, then move on to jogging or swimming. Eat healthy, balanced, and consistent meals. Eating right gives your body the fuel needed to perform at its best. Work some eggs and spinach into your diet; they're super foods for the brain, both containing the amino acid tyrosine, which has been shown to increase reaction speeds. Conversely, drinking alcohol or using illegal substances can slow your reaction speeds down. If you are tired, you'll respond sluggishly no matter how well you eat or exercise. Make sure to get at least 8 hours of good, solid, undisturbed sleep a night. This will allow you to stay alert for longer periods. How much sleep you need will depend on your personal needs. Typically, this will be between 7 and 9 hours. Don't get too much sleep either. If you wake up early, then go and start your day. Sleeping in can make your body and mind sluggish. It is very tempting to down a cup of coffee whenever you need speed and focus on a task. Be careful, though, because this one can backfire! Control your caffeine consumption so it boosts your response times without making you fidgety and scatter-brained. Stick to just 1 cup prior to working on a task requiring quick responses so you don't get jittery and lose focused. This also goes for energy drinks as well. Don't ditch the coffee only to replace it with a canned energy drink. Some medications can slow down your response time and reflexes. Or, you may even experience dizziness or blurred vision. If you need a high reaction speed, make sure to talk to your pharmacist or your doctor about how your medications might impact your abilities. This is an especially important step to follow if you are about to drive a motor vehicle. Even in good conditions, you'll want to have sharp reflexes. Don't get discouraged if you can't change your medications at all. By working on your mental and physical agility, you can still improve your reflexes.
Summary: Exercise. Eat right. Get enough sleep. Limit your consumption of caffeine. Monitor your medications.

Problem: Article: When you want to improve your skin, try to avoid stress. The hormones produced when you're stressed can cause your skin to become more sensitive to outside irritants. It also increase the production of sebum, an oil made by your skin. This oil can cause acne as well as other skin issues. Stress can also slow down healing, trigger irritations such as hives and fever blisters, and interrupt your daily routine. Avoid stress by: Getting regular exercise, because it can boost your mood and keep you physically active and fit. Take a moderate intensity walk for 10 minutes a day or a leisurely walk for 20 to 30 minutes at least five times a week to lift your mood. Get a minimum of seven to eight hours of sleep each night, since a lack of sleep can make you age faster and leave tired looking skin. Practice stress management techniques such as yoga, deep-breathing exercises, or meditation. Green tea is filled with polyphenols, which are antioxidants that repair skin cells and stimulate the production of collagen in your skin. This helps give your skin a healthier glow and protect your skin from harmful free radicals and ultraviolet radiation. These properties also help reduce wrinkles and also has the benefit of decreasing stress. Brew green tea with warm water, which is 175 to 185F or 80 to 85C. Add two to three grams of loose leaf tea to the warm water for three to five minutes, then strain. You can drink this mixture two to three times each day. You may be able to find topical treatments that contain green tea, which can benefit your complexion by improving blemishes and other issues You can also use premade green tea bags instead of loose leaf. Eating well can improve your skin from the inside out. Eat plenty of fresh vegetables and fruit and whole grains to improve your complexion. Eat foods especially high in vitamin A, C, and E as well as zinc to reduce the severity of acne and dermatitis. Some good sources of these vitamins include: Sweet red peppers Kale Spinach Amaranth Leaves Turnip Greens Sweet Potato (Yams) Pumpkin Butternut Squash Mangoes Grapefruit Cantaloupe Ultraviolet (UV) radiation from the sun can cause blemishes, sun spots, wrinkles, and other skin problems as well as increase your likelihood of skin cancer. Ways to avoid exposure to UV radiation include: Seeking shade as much as possible and wearing protective clothing. This includes long-sleeved shirts, wide-brimmed hats, and sunglasses, which help avoid getting wrinkles around your eyes. Using a broad-spectrum sunscreen. People with dark skin should wear at least SPF 15, while people with lighter skin should use at least SPF 30. If you have combination or oily skin, avoid touching your face as much as possible. Dirt and bacteria from your hands clog your pores, which cause blemishes. If you suffer from acne often, remove excess dirt with a gentle, oil-free facial wipe. Never pop or squeeze pimples. This can cause scars and spread the bad bacteria further. Parabens are preservatives that disrupts your skin's hormonal balance and puts you at a higher risk of female centered cancers. If you have acne or eczema, these may cause skin irritation and inflammation because they are a potential allergen. Butyl and propyl paraben are considered more toxic than methylparaben and ethylparaben. However, methylparaben and ethylparaben are more easily absorbed by the human body. They also cause the skin to be more sensitive to UV radiation, which lead to skin problems.
Summary: Avoid stress. Have green tea. Eat a healthy diet. Protect your skin radiation. Touch your face as little as possible. Use skin care without paraben.

Problem: Article: Making a paper model is similar to making the clay model, except your layers will be made using different sized circles of construction paper. The finished size of your paper model depends on how large you want to make it. Using a compass to draw the circles is an easy way to make perfect circles and easily vary the sizes. If you don't have a compass, you can find 5 circular shapes to use as stencils for each layer of the Earth. Use textured paper to make your model stand out.
Summary:
Gather the necessary materials.