4 things about physical health

Sleep It’s common knowledge that most people need 8 hours of sleep a night to stay healthy and alert.  

Eating Well Contrary to what most people think, eating healthy doesn’t mean feeling hungry all the time or eating.

Physical Activity Like eating healthy, exercise can conjure up a plethora of unpleasant images from drill sergeant.

Relaxation

Explanation:

It improve your memory and brain function.

It protect against many chronic diseases.

It aid in weight management.

It lower blood pressure and improve heart health.

21 balloons is the story of professor william sherman's travels.

in 1883, he set off from san francisco for a balloon ride over the pacific and was found a month later floating with 21 balloons in the atlantic ocean. this seemed an astounding feat and everyone wanted to know what had happened.    

professor sherman was loyal, however, and said he would tell his tale first to the western american explorers club in san francisco, of which he was a member. this built up suspense for several chapters before he began to tell of the wonders of his adventures and the amazing island of krakatoa, an island which had just been blown up by a volcano.  

the residents of krakatoa are all millionaires who live under a "gourmet government" of their own devising. we get to see all the incredible adventures that creative people with unlimited resources would create according to the author.