Believe it or not, but you are actually able to work on improving your sense of smell and this is something that is often quite surprising to people. It can of course be useful in a number of situations and the following are a number of things that you can start doing straight away in order to start working on developing this particular sense.
The first thing you need to do is actually pay attention to your sense of smell as the more you use it the more trained your nose will become. Learn to identify things just by their smell and one particular exercise that is worth trying is to be blindfolded and work out what an item is just by smelling it.
One exercise you should try to do in order to improve the sense is to pay attention to how cats and dogs sniff as they tend to use a series of short sniffs rather than a prolonged one and this is something that we often do ourselves. By taking their approach you will slowly increase your ability to actually pick up a scent much more easily, but do not expect to be turned into a bloodhound.
Pay attention to your environment as this is going to make a difference when it comes to your ability to pick up a scent. Look at using a humidifier in a room as the more moisture there is in the air the more moisture in your nose. This then means it is going to be more receptive to a scent; however, do not do this if there is a bad smell around as prolonged exposure to a bad smell is only going to numb the sense over time.
Apart from training your nose you should also try to avoid eating as much food that results in you creating more mucus as this will impair the sense and make it harder to distinguish different smells. This makes sense as you will have already noticed how things change when you have a head cold and this is due to congestion in the membranes of the nose which has an impact on the sense. Look at, therefore, cutting down on the amount of dairy products you eat, including ice cream and cheese as they can really promote a more stuffy sensation in your nose.
When looking at buying food try to use your nose more than your eyes so if you are walking past the bakery work out the bread that smells the most appealing and then look at sniffing out items that would go best with it. By doing this you are actually buying items your body is craving and it also strengthens the connection between smell and taste and you will be aware of how different food can be when your nose is blocked up. By understanding, and working on, the link between the two you can actually improve both senses at the same time with both being heightened as a result.
One pretty obvious way to improve the sense is to avoid any substance that has been shown to impair it in some way. Smoking is one thing to look at avoiding as is drinking as much alcohol due to the well known fact that as your blood alcohol levels begin to rise your ability to smell things decreases. Do also be warned that some medicine, especially that for colds, can also make a difference so do look for those items that contain a decongestant.
Finally, a lack of sense of smell, which has the medical term Hyposmia, can sometimes be attributed to low levels of zinc in your diet. You should, therefore, look at getting some more either through a supplement that you can take every day or by eating foods that are known to be high in the mineral. This means eating the likes of lentils, oysters, and pecans to name only a few examples or if you are taking the supplements, then try to make sure you are getting around 7mg of zinc per day.
So by doing the exercises mentioned above you should find that your sense of smell will start to improve. It does require some work, and for you to continue doing it, but you will begin to notice a gradual difference and will probably wish you had started the exercises earlier in life.