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 you lie down to sleep, GERD can propel stomach acid into your throat and mouth, causing you to cough. If your increased coughing is caused by a co-morbidity, antibiotics or medications can be used to get you back to your baseline. Donât make any assumptions, thoughâspeak to your doctor, who will make a diagnosis and prescribe you the right medication.