● Lose weight and reshape your body.

● Maintain good health and physical and mental pleasure.

● Relieve stress

● Maintain a good cardiovascular state.

● Improve blood lipid level.

● Maintain a good level of insulin response.

● Conducive to relieving postpartum depression.

Studies have shown that moderate exercise (50%-75% exercise intensity) will not affect the secretion of breast milk, and the composition of breast milk will not affect the baby's growth. High-intensity fatigue exercise (100% exercise intensity) may affect the IgA level in breast milk and the lactic acid level in breast milk, but this possible effect is short-lived.

Rumors may have originated from some early small sample studies, but these studies were later proved to be unreliable.

Does exercise affect the quantity and composition of breast milk?

No, no research shows that exercise affects the secretion and composition of breast milk.

Some early small sample studies have found that after high-intensity fatigue exercise (100% exercise intensity), the IgA level in breast milk will drop for 10-30 minutes, but it will return to normal level within 1 hour, which has no significant difference on the overall IgA level in breast milk within one day. In addition, the study shows that the IgA level in breast milk has no obvious change after moderate intensity exercise (50%-75% exercise intensity).

Studies have shown that after high-intensity fatigue exercise (100% exercise intensity), the lactic acid level in breast milk may increase slightly in the short term, but this level increase will not cause any harm to the baby.

Most studies have found that even if the mother does high-intensity fatigue exercise (100% exercise intensity), it is not found that the baby will refuse to drink milk or dislike it.

Earlier research found that after the mother had a high-intensity fatigue exercise (1 0,000% exercise intensity), if the milk was squeezed out and put in a bottle for the baby to drink, the baby was somewhat resistant. However, the reason for this phenomenon is not necessarily that the breast milk has changed obviously, but that the baby is not used to and doesn't like the bottle, because before that, if the mother and mother had a high-intensity fatigue exercise (1000% exercise intensity), and then breast-fed directly and sucked the mother's nipple, the baby would be no different at ordinary times.

Moreover, the later research found that even if the mother did high-intensity fatigue exercise (100% exercise intensity), the lactic acid level in breast milk increased slightly, and the baby's acceptance of breastfeeding did not change.

If the baby doesn't like to drink milk after the mother's high-intensity fatigue exercise, it may have nothing to do with the exercise itself. It may be that the baby doesn't like the salty taste of sweat on your breasts (the baby is sometimes very picky about food), then you should come back first to let the sweat out, and then take a shower to make yourself delicious, so that the baby won't frown. Babies like delicious grandma who smells like milk.

If you do this, the baby will still frown. Before breastfeeding, you can wait for half an hour to let the lactic acid level drop, then squeeze out 3-5 ml of milk before breastfeeding, or try to reduce the amount of exercise.