Despite our best efforts to replicate hormones, slow the ageing
process and map the human brain, our bodies are smarter than
we'll likely ever understand. But not everything is so complex.
When we're feeling tired, stressed or rundown, our bodies let us
know with some very basic signals. Ignore them at your peril
writes Rosalind Scutt. In a perfect world we'd live long,
healthy lives, free from illness and disease. Although
developments in medical science are bringing us closer to that
point, there is still much we do not understand about our own
physiology how it works, and why it breaks down. While we're
waiting for research to unlock the secrets to infinitely good
health, it's reassuring to know that very often, before our
bodies do malfunction, we're likely to see some obvious warning
signs associated with a weakening immune system. Some common
physical symptoms include sweating, headaches, cold sores,
thrush and other skin inflammation such as eczema, while
emotional symptoms include feelings of irritabi