The researchers don't know why less sleep is associated with a greater susceptibility to colds.
Some people may have suppressed immune systems (the elderly, the pregnant), others may just be weird about colds.
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Type II would be if the intervention fails to distinguish meth users buying Sudafed from those who have colds.
The SARS virus is most probably a coronavirus, the type of virus responsible for up to 30% of common colds.
Lead researcher Dr Tapun Basu said the study had shown that the herbal remedy was "effective" in warding off colds.
But the unit deepened scientific understanding of the condition, isolating coronaviruses and rhinoviruses, two of the most frequent causes of colds.
Representatives of the industry group also said it can be challenging to design, and enroll participants for, studies testing medicines for children's colds.
Dr Jim Kennedy, prescribing spokesman of the Royal College of GPs, said patients often asked about whether ginseng helped to protect against colds.
Although the study looked at 17 trials, the core analysis only used eight of them, all of which used patients with naturally acquired colds.
It also found one in four people believe alternative remedies can help to relieve common ailments like back pain, stress and coughs and colds.
Coronaviruses, which are common around the world, often cause colds.
And infants and children are the biggest spreaders of colds.
It is depressing that a poll carried out by the Health Protection Agency found that a quarter of people wrongly believe antibiotics are effective against most coughs and colds.
Regular international flyer George Kellerman admitted that bringing a supply of sinus rinse, also known as a neti pot, on every trip sounded crazy, but flushing his sinuses everyday seemed to keep travel colds away.
The stem of Ephedra, for example, was used to relieve asthma symptoms, coughs, colds and allergies.
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Do remember that antibiotics cannot help you recover from infections caused by viruses, such as colds or flu.
Poorly-cooked food brings stomach bugs, and unheated homes mean coughs, colds and worse.
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High altitudes can tire the body, and fatigue plays a role in making people more susceptible to catching colds, too.
Well, a London doctor is warning that the vuvuzela could also spread colds and flu germs.
Dannon will stop claiming that Activia relieves irregularity and that DanActive helps people avoid catching colds or the flu.
The researchers didn't test whether echinacea alleviates colds already in progress.
Rhinoviruses are responsible for about half of all common colds in children and adults.
She must have a robust constitution, he thought, immune to colds and despair, unsentimentally surviving.
Her claim that the mixture could cure colds may have been an overstatement.
A., reported a study suggesting that echinacea was no better at preventing colds than a placebo (a pill with no active ingredients).
University students have been found to suffer colds and flus more in autumn than spring.
Coughing is one of the most common symptoms of colds and flu and other respiratory tract infections.
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