The term physical activity refers to a wide variety of activities and movements that include daily activities, such as walking, dancing, going up and down stairs, household chores, gardening, and others, in addition to planned exercises.
Sedentarism is linked, among other things, to the development of obesity, diabetes, some types of cancer, cardiovascular diseases and their risk factors. The regular practice of physical activity not only prevents their development but also contributes to the good control of the disease when it is already installed.

The regular practice of physical activity:
It prolongs life and improves the quality of years to live
Reduces stress
Improves mood
Improves bone health
Preserves and improves balance and coordination
Increases joint flexibility
Helps in maintaining muscle mass lost with age.
Helps in improving cardio-respiratory and muscle function
Helps achieve weight loss when combined with a proper eating plan
Contributes to preserving mental functions in elderly people such as comprehension, memory, concentration, etc.
Prevents the development of diseases such as diabetes mellitus, hypertension, dyslipidemia, obesity, cardiovascular disease, osteoporosis, colon, and breast cancer
Reduces LDL (bad) cholesterol and triglycerides values
Increases cholesterol HDL (good cholesterol)
Improves blood pressure values

It is recommended:
Add at least 30 minutes of physical activity per day: You can walk briskly, go up and down stairs, dance, ride a bike, swim, walk instead of using the car, do housework and gardening, wash the car, and play sports.

A correct and adequate posture avoids injuries and discomfort
Some diseases, injuries, and ailments can be the result of poor posture, repetitive movements and sedentary lifestyles. Some daily life and work practices can be corrected to prevent discomfort and improve health and quality of life.
Regular physical activity brings physical and psychological benefits such as: improving joint and muscle mobility, promoting cardiovascular health, contributing to maintaining an adequate weight, reducing stress and reducing the risk of diseases such as hypertension, diabetes, cholesterol, and osteoporosis.

Some simple practices help to improve the bad body posture that impacts on health and generates Sedentarism:
In the office:
Before beginning to work adjust the furniture and posture of our body, thus avoiding ailments and pathologies. Keep in mind:
The upper edge of the monitor at eye level or something below it, 45 to 55 cm approximately
Head/neck in an upright position. Shoulders relaxed backward
Forearms and arms at 90° or slightly more
Forearms, wrists, and hands in a straight line
Elbows attached to the body
The distance of the keyboard to the edge of the desk of 10 cm. to allow the support of forearms
Mouse, and other input devices, close to the keyboard
Legs and thighs at 90° or a little more
Thighs and back at 90° or a little more
Feet glued to the floor or on a footrest.
Free space between the edge of the seat and the knees

When driving:
The car seat must allow the pedals to be reached with the back fully supported
Knees and hip must be aligned
Hold the steering wheel with both hands so that the arms are slightly bent

When sitting:
The height of the chair should be such that your feet are supported and your knees are kept at a 90° angle to the hip. Otherwise, use a footrest.
The back of the chair should maintain the normal curvatures of the spine, especially the lumbar region.
Keep your back upright and in a straight line with heels and toes always resting on the floor
Sitting the spine against the backrest (a cushion may be used in the lower back)
The chair should be close to the desk to avoid leaning forward and not stooping
Avoid sitting on the edge of the chair and leaning or carrying your body weight to one side
Always keep your arms and elbows supported

When bending over to lift and/or carry heavy objects:
Do not bend your back and your knees by leaning firmly on both feet
When getting up, hold objects close to the body and lift them only up to chest height with semi-flexed elbows.

Daily tasks:
Ironing
Performing the task sitting or standing with one foot above a height of approximately one step. Changing your arm from time to time. With the ironing board, whether seated or standing, at hip height.
Washing
Place one foot on top of an approximate height of a step, using the space underneath the pile. Change feet alternately.
Sweeping
Keep your back as straight as possible. For this, it is important that the broomstick has enough height.
Vacuuming
Bending and resting one or both knees on the floor to access difficult areas.
Clean windows
Do not stretch with a forced or tiptoe position. To reach high areas, it is best to climb a ladder.

Do not spend too much time sitting:
Approximately every hour, get up, walk a few meters, do small stretches, go up or down a flight of stairs or walk around the block.

Add at least 30 minutes of physical activity:
Every day, continue or split, using ADLs (activities of daily living) such as leaving the car further away, going down a few blocks before the bus, shopping on foot, using the stairs instead of the elevator, not using the remote control when watching TV to motivate people to get up, or in a planned way such as walking, cycling, swimming, dancing, jogging, weight lifting, etc.

Get hydrated:
Drink plenty of fluids during the day (about 2 liters of water) to maintain good hydration, especially before and after physical activity.



Source: https://www.healthylivingng.com/physical-activity/