If your diet consists of junk food and you don’t keep up with exercise then it’s likely your well-being will be affected. Your energy levels will drop which means you’ll be tired more often and more grumpy. Those around you will begin to notice which means you’ll either bring their energy down too or they will stay away from you.
Not only that but your motivation to do good work at your job will also certainly drop. Which of course hurts your chances of progressing through the company.
You will be of course more prone to things like disease, tonsil infections and many other health problems. They may not necessarily be fatal but they’re definitely things you want to avoid. After all, any type of infection is an inconvenience.
So for the sake of your working and social life, keep good care of your health!