Why your doctor advises you to drink plenty of water ?

Dr. Usha is a pulmonologist (Doctor for respiratory diseases). One day , a school student named Arjun , met her with respiratory problems. After diagnosis , the doctor advised him to go playground daily and play football or basketball. She also advised to do pranayamam in the morning. Why did the doctor advised him to go to the playground ?

Why is it easier for you to float in salt water than in fresh water?

Dr. Usha is a pulmonologist (Doctor for respiratory diseases). One day , a school student named Arjun , met her with respiratory problems. After diagnosis , the doctor advised him to go playground daily and play football or basketball. She also advised to do pranayamam in the morning. What is the use of pranayamam ?

Why is it not advisable to take a fountain pen while travelling in an aeroplane?

A doctor advises an adolescent girl who is suffering from anaemia to include more of leafy vegetable and dates in her dite . Why so ?

Teenages are interested in peer activities. During a study tour, one of your friends offer you an alcoholic drink. Explain to him/her the bad effects of drinking.