Near sightedness is a condition whereby the eyeball is too long or cornea has excess curvature such that light entering the eye is focused in front of the retina rather on the retina itself.
The exact cause of nearsightedness is unknown but there are two factors that may be responsible for its development.
1. Visual stress
2. Heredity
Individuals who spend considerable time reading or working at a computer or engage in other types of intense close visual work may develop nearsightedness.
There is credible evidence that many people inherit nearsightedness or are at least predisposed to the condition, especially if both parents suffer from the condition.
Far sightedness (hyperopia) is a condition where the eye is shorter than normal, the cornea is not curved quite enough or the lens sits further back in the eye than is normal.
This condition can be inherited especially if both parents suffer from it.
The other cause is through diseases like diabetes or glaucoma.
Answer:
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There are many ways you can reduce stress, even ones that can change your life.
Explanation:
Stress can interrupt your daily life making your everyday life, or trying to enjoy simple tasks, a hassle. One way you can reduce and avoid stress is by finding simply what makes you stressed. Locating the source and being aware of it can help with that overwhelming feeling that it may cause. The next thing you can do is just do something about it! Stressed about being a new parent? Afraid you won't make the basketball team? Talk to your friends, family, peers, anyone who can help you through this time of uncertainty. Watch videos for new parents and find books about how to make sure you're doing the best you can and be confident in this -understandably stressful- thing that you may need some help with. Confronting the stress and making yourself happy or confident in the situation may help. If this doesn't quite make you feel any better- distract yourself, at reasonable times. Don't ignore the problem or event altogether, but a nice healthy distraction may just be what you need. If you are preparing for tryouts and all you can think about is how you can't get your shot from half-court down? Take a break off the court for a while if that's what you may need. You can go and see a movie with your friends (maybe not <em>Space</em> <em>Jam</em>). Turn to a book, relax your muscles, do something! (other than trying again, and again, and again) because while practice does make perfect, you're allowed to have a break every once in a while. Not letting yourself have a breather may increase your stress even more. But all of these may help you get back on your game, and without sore wrists or mind from practicing all day, you may finally get that two-pointer. The stress? What stress?
Another way you may manage stress is just to do simple self-care, such as planning time for scheduled relaxation. Relaxing can de-stress your nerves, in forms such as yoga, meditating, or even just having some downtime to just let yourself take a deep breath -or two- literally. Schedule you-time, doing something that makes you feel good or happy, even if that thing is as simple as a crossword puzzle or going on a walk. Make sure you're eating and getting your daily nutrition in regularly. Making a 'meal plan' can help with the stressful long work or school days and having what you will eat mapped out (or even cooked already) can also be a great way to make sure you're eating the right amount proportionally and nutritionally. Eating is also proven to put a positive improvement upon your mood. Avoid negative things like staying up at night, not getting daily exercise, or including drugs or alcohol in your life. These things can add more elements to your stress, and the effects of stress may weigh on you. All of these can make you more prone to stress or make stress impact you in a more serious or harder-to-cope way. Stress is an everyday thing so don't <em>stress</em> it- just do what you can.
Stimulants increase heart rate, increased blood pressure, constrict blood vessels, increased blood glucose
It's more accurate, especially since heart rate is almost universally measures in beats-per-minute, than, say, timing your pulse for a [factor of 60] seconds (30 seconds, 20 seconds, 15 seconds, 12 seconds, etc.).
