Neurotrophins, released with an increased heart rate, have been shown to make you more alert and focused. At the very least, exercise combats stress and anxiety, which gives you a head start for confident behaviour. The bottomline is that when you think positively of yourself, you feel good. There is positivity in the atmosphere, which will touch whatever you do. Therefore, exercise is beneficial to your success in workplace.
Nobody enjoys rejection or criticism.
But confident women don't react to personal or professional rebuffs by going to bed for a week. Self-assured women know how to deflect criticism. Sure, a biting remark hurts, but the pain soon goes away. No matter what you do, there will always be someone to criticise you. It is only when you are in a challenge that the best in you comes out.