Research has shown that anxiety in men can result in an increased ability to detect odors — even faint odors. Other research subjects’ sense of taste has been heightened when a viscerally disgusting scenario was described to them, although the same reaction did not occur when they were presented with a scenario involving them being cheated out of money. There also is evidence that, like anxiety, rage can result in the sharpening of some physical senses and reduce a person’s ability to feel pain.
More about the the senses:
A woman’s sense of smell can rise with elevated estrogen levels. When estrogen levels drop, so can a woman’s ability to detect odors.
Some people suffer from ofactory hallucinations, in which they smell things to which they aren’t actually being exposed.
People who are suffering from depression might experience increased body aches and pains.