Exercise does not take weeks to start giving you benefits. It has the ability to change DNA molecules within the muscles instantly, making them fight fat. A study in cell metabolisation by researchers at the Karolinska Institute in Stockholm showed that the DNA within muscle taken from candidates who had just done a short and sudden burst of exercise had fewer methyl groups than before exercise. Methtyl acts like locks with our cells, preventing keys entering our DNA that help muscles metabolise fat. As these locks fall away, more fat is used by the muscles which get a boost and begin to work more effectively.
The new discovery is significant as it confirms that exercise helps the body to become more healthy in minutes.