People worldwide, for ages, have been using their morning dose of coffee to kick start their day, and the caffeine rush is much needed for the majority of us to beat the daily blues. However, a sleep expert has advised against drinking coffee as soon as you wake up. According to Rex Isap, the well-known sleep expert and CEO of Happy Beds, you should wait at least an hour after waking up in the morning before consuming your first cup of coffee as the human brain produces the chemical adenosine throughout the day, which builds up when you stay awake for a long time, making you fall asleep sooner…