Starve a fever?
There is an old wives saying, feed a cold and starve a fever, but what does the latest science say?
Although eating less when we are ill can sometimes help us to recover faster. The loss of appetite when we have an infection is a biological “trick” that simply allows bacteria to spread. Eating nutritious food when we have an infection can reduce its severity and recover time say researchers.
Researchers have tracked the health of laboratory mice infected with the Salmonella bacteria and found that natural loss of appetite helped the bacteria spread from the intestines to other tissues. By comparison, mice fed extra calories lived longer.
This discovery could lead to new ways to tackle bacterial infections that don’t rely on antibiotics.
Reference
Rao, Shelia et al, 2017, Pathogen-Mediated Inhibition of Anorexia Promotes Host Survival and Transmission, Cell, Volume 168, Issue 3, 503 – 516
Related Posts

Foam Rolling Guide – Part 1
What is a foam rolling? A foam roller readily available from the likes of TK Maxx is a tool for self massage. Foam rolling is basically a cheap and easy way of keeping your muscles flexible. How do you foam roll? You place the foam roller under the area you’re targeting and use a gentle, flowing backwards and forwards motion to apply pressure to the area. How does it work? You know how if you visit us for a massage, we apply pressure to release the knots in your muscles. You use the same principle with a foam roller except you use your body weight to apply pressure. Are there any downside to foam rolling? While I fully recommend foam rolling it will never replace the precision and experience of a massage therapist. It can be difficult to target small areas with a foam roller so a spikey ball is a better alternative. How often should you foam roll? The simple answer is as much as you can. When exercising a foam roller should be used both before and after exercise for best results. Please try to remember foam rolling isn’t a chore it’s a therapy you will gain benefits from it!

So how does massage reduce pain? – Part 2
Previously I explained the scientific theory for "How does massage reduce muscle pain?" in the short term . But what about the long term? I would like to introduce to you the "descending pain suppression mechanism." The brain is not a passive receiver of sensory messages, but rather a centre that interprets them and makes constant adjustments accordingly. For example, everyone knows that the way you perceive pain will be influenced by whether you focus on it or think of something else instead. And it seems reasonable to suppose that evolutionary selection may have favoured those individuals who could ignore pain signals for long enough to take actions that let them escape and survive danger.
Unpleasant cutaneous sensations stimulate nuclei within the mid brain. These nuclei in turn initiate activity in the descending spinal tracts that release endogenous opiates (inhibitory neurotransmitters) within the spinal segment receiving the painful input. This diminishes the intensity of the pain transmitted to the higher centres. Sports and Deep Tissue massage techniques can reinforce a naturally occurring discomfort, causing much greater release of opiates and achieve a more profound pain suppression.
References Basbaum A, Fields H. (1978) Endogenous pain control mechanisms: review and hypothesis. Ann Neurol 4: 451-2. Watson J (1982) Pain mechanisms: a review. 3. Endogenous pain mechanisms. Australian Journal of Physiotherapy 27: 135-43
Can Yoga help if you have fibromyalgia?
We all struggle to get our heads around things from time to time. For me I find it hard to imagine living with Fibromyalgia, the constant pain, which moves around the body and the tiredness. In addition to the physical symptoms there is the additional mental strain of living with a chronic condition that is has no visible signs and can change from day to day. A pilot study recruited 22 women who had been diagnosed with Fibromyalgia to participate in a 75 minute yoga class twice weekly for eight weeks. Questionnaires were used to track pain, anxiety and depression they were completed pre, mid and post intervention. In addition salivary cortisol samples were taken three times a day pre and post intervention. The results indicate that a "yoga intervention" may
- Reduce pain
- Reduce catastrophising
- Increase acceptance
- Increase mindfulness
- Alter total cortisol levels

