What do nightmares tell us about our health?

Turns out, nightmares are an indicator of mental health problems, such as anxiety, post-traumatic stress disorder and depression.

Nightmares are classified as dream sequences that seem realistic and often awaken the person. Though fear is the dominant emotion felt during nightmares, according to a study, sadness, anger, confusion, disgust, frustration or guilt were also common.

The study, analysed nightmares of 351 adults and found that the most frequently reported theme was physical aggression, followed by being chased and the presence of an evil force.

But if bad dreams start frequenting your nights, it could be a sign of health problems. An estimated 2 per cent to 8 per cent of adults can't get rest because terrifying dreams wreak havoc on their sleeping patterns.

A phenomenon called REM sleep behaviour disorder, in which a person acts out aggressive dreams by screaming, moving around or jumping out of bed could also predict neurological diseases like Parkinson's.

Struggling to fall asleep would create a vicious cycle of worry. Fretting over job performance or whether or not feeling like normal self or wanting to socialize because of one's fatigue.

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Cataracts and your eyes: Five things to know!

THIS IS ONLY FOR INFORMATION, ALWAYS CONSULT YOUR PHYSICIAN BEFORE HAVING ANY PARTICULAR FOOD/ MEDICATION/EXERCISE/OTHER REMEDIES.

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  A cataract is a clouding of the lens in the eye. It can occur in either both eyes, but cannot spread from one eye to the other.

Cataracts are mostly due to aging process, and are the most common cause of vision loss in older people. It is said that cataracts cause more vision problem worldwide than any other eye condition or disease.

Here are five facts about cataracts:

What is the lens?

The lens is the clear part of the eye behind the iris that helps to focus light on the retina. It helps to focus on both far and near objects so that they are perceived clearly and sharply.

What causes cataracts?

While age is the most common cause of cataracts, environmental factors such as radiation, toxins, and ultraviolet light can put you at an increased risk. Also, some cataracts are congenital and babies are occasionally born with them.

Risk factors:

Risk factors include:

• Age
• Diabetes
• Family history of cataracts
• Obesity
• Previous eye injury/surgery/inflammation
• Long-term exposure to bright sunlight
• Tobacco use

  Symptoms

  Usually, cataracts show few symptoms until they are at an advanced stage. Symptoms include:
  
• Decrease in clarity of vision/blurry vision
• Glare – vision becomes worse when light is very bright
• Difficulty with vision at night
• Frequent changes in eye glasses
• Double vision or multiple images in one eye.

Can cataracts be prevented?

While there is no proven method of preventing cataracts, doctors believe that several strategies may be helpful. These include:

• Following a healthy diet that includes plenty of fruits and vegetables
• Not smoking
• Limit alcohol intake
• Avoiding excessive exposure to UV light or wearing UV-blocking sunglasses whenever you step out in the sun
• Maintaining a healthy weight
• People with a history of eye problems or other medical conditions that increase the risk of eye disease should get regular eye examinations