1.Pay attention to what you already smell.
The more you use your senses, the better you get-kind of like practice makes perfect. Teach yourself how to describe smells. You could have someone hold various things to your nose while you are blindfolded and try to identify the smells.
2.Take to account how certain smells make you feel.
The sensory nerves that sense smell are connected to the emotional parts of the brain, equating your rationality out. While the smells of fast food wrappers, fresh bread or pastry increase the likelihood of road rage, cinnamon and peppermint improve concentration. Then there are the smells of lemon and coffee which promote clear thinking and lift concentration levels.
3. Stay away from foods that cause excess mucus production.
Notice how your sense of smell tends to fade when you have a cold? Congestion in the nose membranes that contain the smell-sensitive nerve endings, diminishing your ability to smell. Avoid food that uplift stuffiness like milk, cheese, yogurt and ice cream.