He estimated how many species of insects lived on each plant species in England, and then extrapolated that figure across the whole planet. âIf we say 400,000, we shall, perhaps, not be very wide of the truth,â he wrote. Today, scientists know the Westwood figure is far too low.
Symptoms: A chronic dry cough that's worse at night, disturbing sleep, and sometimes with wheezing and shortness of breath. Causes: An irritating night cough is often the first sign of asthma, especially in children, but you can develop it at any age. It's also a sign asthma is worsening or not being well controlled.
When people breathe through their mouth during the night, they can cause dry mouth that can be harmful on the gums and... How to Stop Dry Mouth During the Night. Dry mouth, or hyposalivation, is a condition caused by a decreased production of saliva.... Dry mouth has many causes that can sometimes escape us, ... Treatments for Dry Mouth at Night.