By Niamh Kirk Giving up smoking can be tricky, but your body will thank you for the benefits after just 20 minutes. It takes a lot of willpower to kick the habit, and there is support all around to help. Not only will it save money, but the health benefits are extroadinary and the sooner you quit the sooner you’ll notice the effects. According to the NHS, just 20 minutes after stopping, you will notice your heart rate has returned to normal, as smoking increases your heart rate and tightens your arteries – ultimately making your heart work harder. This is echoed by NiQuitin, the quit smoking c…