Personal Health and Hygiene - Class VII

• The Importance of Good Personal Hygiene is for the maintaining of personal hygiene as it is necessary for many reasons like for personal, social, health, psychological or simply as a way of life. 
• Keeping a good standard of hygiene helps to prevent the development and spread of infections, illnesses and bad odours. Hence, Maintaining personal hygiene is important because Lack of oral hygiene causes oral thrush and dental caries, Poor personal hygiene may cause foul smelling and Poor personal hygiene affects the appearance of an individual.

• Cavities, also called tooth decay or caries, are caused by a combination of factors, including bacteria in your mouth, frequent snacking, sipping sugary drinks, levels of acid in food and not cleaning your teeth well. 
• Cavities and tooth decay are among the world's most common health problems.  
• Sugar isn't the only culprit when it comes to tooth decay. High levels of acid in everyday foods and drinks can be just as harmful. From oranges to wine, high-acid foods and drinks can wear away your teeth, causing decay, sensitivity and discolouring. Hence,  Acid causes tooth decay.

• Massage helps to reduce tension in the skin and adjoining tissues as well as increasing its circulation and improve its nutrition.
•  Massage can help to re-moisturize and soften dry skin. Increases sebum (natural oils produced by your skin) production, helping improve your skin's suppleness. Hence, Massage of the skin improves Blood circulation.

• We should take care of our nose and ear by: 

Generally, healthy individuals are not prone to diseases. Being healthy is concerned with pure and fresh living which is generally free from any disease or viral infections. Therefore, (d) is the correct answer.

Sleep is an essential component to maintaining health. In children, sleep is also vital for growth and development. Therefore, (a) is the correct answer.

A normal person needs 7-9 hours of sleep to have a healthy life. Therefore, (c) is the correct answer.

A normal person needs 7-9 hours of sleep to have a healthy life because less than this can alters insulin resistance, which is associated with an increased risk of developing type 2 diabetes. Various other risk factors are associated with deprived sleeping conditions like obesity. 

Lack of sleep can lead to a number of issues in an individual. These include stress, increased risk of diabetes, heart problems and obesity. Therefore, (c) is the correct answer. 

First kit is very important in cases of emergency. It contains various things like cottoon wool, medicines, bandages which helps in wound dressing, minor cuts etc. it helps to control bleeding and reduces the risk of infection.

Accidents are the mishaps which occurs due to  unfavorable circumstances. Road accidents are nowadays a common accidents which is caused due to  carelessness towards road safety rules. Following traffic rules, using of helmet can prevent the road accidents. 

Basal metabolic rate (BMR) is defined as the minimum amount of energy required by the body to maintain basic life functions while at complete physical and mental rest.

Electricity is a produced by the continuous flow of charge. It requires medium to flow from one body to another. The substance through which it can pass are known as conductors and the substance through which it cannot pass are known as insulators. Water is good conductor while rubber is a bad conductor of electricity.

Electricity is a produced by the continuous flow of charge. It requires medium to flow from one body to another. The substance through which it can pass are known as conductors and the substance through which it cannot pass are known as insulators. Water is good conductor while wood is a bad conductor of electricity. Wearing helmet is not precautionary measures to avoid electric shock as the helmet is made up of metal which is a good conductor of electricity.