Generally most of the people among 1 to 25 years are healthy and active with normal physical behaviors. In this age they don’t care about their health. At the age of 26 to 40 years (Middle age) people become tired but they retain ability to work well. A person in the middle adulthood stage ages from 40 to 60 years. In this period they become sick, and might have some age relate diseases such as Blood Pressure, diabetes, gout, cancer, poor eye sight, back ache etc. Finally people who are 60 plus in age became old. They do not work actively and most of them are about to die.
Components for a fit and healthy lifestyle change according to a routine. The fitness that begins in childhood changes by age with physical development. Below I want to offer some special tips on nutrition and fitness which is recommended by age:

CHILDHOOD (age 0-12)
Nutrition: This type of age recommends extra fats and calories for physical developments. In this time one also needs a high diet in whole grains and fruits.
Fitness: Children under 6 should have play actively, structured or unstructured. But of age group 6-12 recommends at least one hour physical activity per day.

ADOLESCENTS (age 13-18)
Nutrition: This age needs some extra calories but limited .They should not consume more calories than they burn off.
Fitness: This time is the main time to build a teens body. They should join a sports team and exercise at least one hour per day.

YOUNG ADULTS (age 19-35)
Nutrition: Adults should take limited calories with a nutritious snack mixed with dried fruit and nuts.
Fitness: This is the age when a person has no time to work out due to education or work demands. But moderate cardio exercise is recommended 2 to 5 hours per week. A workout partner is especially beneficial for this age group.

MIDDLE AGE (age 36-59)
Nutrition: Nutritionists recommend a diet high in fiber but low in fat and sugar. For preventing bone loss a person should take some foods that contains vitamin D.
Fitness: It is important to get daily exercise to prevent weight gain and chronic illness. For balance and flexibility, doctors recommend a weekly cardio and strength training routine that can help protect against falls later in life.

SENIORS (AGE 60 plus)
Nutrition: Seniors also need to eat fewer calories to avoid becoming obese because their bodies burn fewer calories. Consult your doctor before beginning any new diet, supplementation or exercise regimen. A person should take more calcium, vitamins D and B12 to stay healthy. Increased calcium will help him avoid osteoporosis.
Fitness: Seniors who exercise have a lower risk of older adult disease, depression, arthritis and dementia. Walking is great a movement for the joints and keeps the blood pumping.