Lost sense of smell
Not only could a decline in your ability to smell be an early sign of the degenerative disorder Parkinson’s disease, according to DoctorOz.com, the area of your brain responsible for smell is also affected by Alzheimer’s.
Indeed, a pair of studies suggested physicians may be able to screen patients for Alzheimer’s by testing their ability to identify common scents, like coffee, smoke and raspberries, according to National Public Radio.