Blood pressure falls as a result of massive water loss.
The absence of these oils can increase water loss by 75 percent.
It seems to make up around half of the overnight water loss during this hour.
A program to control water losses by Sabesp was set up in 2008.
"After a major fire or water loss it can be quite tragic," she said.
Most desert animals reduce water loss by finding shade in some form or other.
During the day, the animal stays hidden to reduce water loss from heat.
There is great variation in how trees deal with water loss.
The skin changed to become more protective and prevent excessive water loss.
So such trees have to lose their leaves in the autumn to prevent water loss.
