This week there has been much written in the press about mental health, but something which is less touched on is a SAD; temporary condition which affects millions of people worldwide throughout the winter months.
SAD, or Seasonal Affective Disorder, is a condition which can have a profound effect on mood, and mental health from late autumn until the spring. Symptoms can include tearfulness, stress and anxiety, lack of concentration, irritability, feelings of low-esteem and worthlessness and general despair, and in severe cases sufferers can feel suicidal. A lack of sleep can often be a major issue, and it can also influence appetite, immunity and production of feel good hormones such as serotonin, which help us feel positive and motivated.
The main cause is the lack of sunlight, which causes the brain to produce more melatonin; a hormone which helps us sleep at night. Melatonin production is triggered by the brain as darkness sets in, and then cortisol is produced as daylight emerges to help us feel awake and active, so longer darker days can cause hormone imbalance which can impact on many facets of our well being. This hormone shift can encourage comfort eating and binging, blood sugar imbalance leading to mood swings, and weight gain. Another side effect can be an impaired immune system, which can explain why we are so susceptible to colds and flu at this time of year.
So what can you do to beat the winter blues?
Finally, comfort eating is fine if you choose the right options. One pot dishes such as bean and vegetable stews, shepherds pies, fish pies, or curries will give you nutritious filling meals to keep you going until the days start getting much longer!
So, if your friends, family or colleagues are grumpy and irritable this winter, a good place to start is with their diet. After all, as Paul Theroux once wrote “Winter is a season of recovery and preparation.”
I have had two queries this week from clients who are avoiding dairy and worried about their calcium intake and the potential impact on their bone health. This is becoming an increasing worry with the prevalence of dairy intolerance.
Many of us grew up with Milk Marketing Board messages telling us that milk is the best source of calcium and essential for the bones of growing children; however the truth of the matter is that there are plenty of calcium rich foods to add to our diet if dairy is causing problems.
So how can we look after our bones if we are dairy-free?
Calcium is undoubtedly a vital nutrient – it not only helps build healthy bones and teeth, but is needed for nerve transmission, blood clotting and muscle function. Our bones not only give us frame and structure, but are comprised of crystalline salts, and as such, act as a storage vessel for essential minerals including calcium and phosphorus. The cells in our bones continually break down and rebuild throughout our life, although the rate at which this happens declines as we get older.
But other nutrient such as magnesium, Vitamin K, Vitamin D and boron also help with healthy burn turnover.
Acid/alkaline balance is also an important factor. The ideal ratio in our body is around 70% alkaline and 30% acidic, but when the pendulum swings in the direction of being over-acidic, for example if we consume too much red meat, alcohol, sugar or caffeine, this can result in problems such as arthritis, gut imbalance and damage to hair, skin and nails. More importantly, when our body becomes too acidic our body looks for a way of restoring balance with alkalising minerals, and these will be released from the bones – leeching calcium and making the bones more brittle and vulnerable to damage in the process.
To support good acid/alkaline balance and bone health, we therefore need to do the following:
And the sunshine connection?
Calcium in our food need to be converted in our body into a form body that can be utilised, and this conversion relies on good levels of Vitamin D. It is now thought that Vitamin D deficiency is a growing issue worldwide, with a 2009 study suggesting that around ¾ of Americans thought to be deficient (CNN News).
One of the culprit’s is dietary insufficiency, which can be addressed by including eggs, fortified cereals and oily fish such as sardines and pilchards in your diet; but the other, the prevalence of advice in recent years to cover up in the sunshine to avoid skin cancer.
Vitamin D is converted in our skin through exposure to UV sunlight, so whilst we obviously should not be burning and putting our skin health at risk, a little access to sunlight each day is vital for our health. The NHS advises around 10-15 minutes of exposure between 11am and 3pm would be enough to build Vitamin D reserves. A number of other medical complaints are also being linked to lack of Vitamin D, including rickets which we thought had been all but eradicated in our developing society(BBC News)
So, whilst the sun is out; wait a short while before layering on the sun cream, and build your Vitamin D reserves for the long dark winter days (albeit hopefully a long way off!)
If you are concerned about your bone health or Vitamin D levels – particularly if you have a history of osteoporosis in your family – you can ask your GP for a bone density or Vitamin D test. You can also order a test kit online which will assess levels of Vitamin D and calcium in your blood. You can find this at http://www.myvitdtest.com/
If you are concerned about levels of calcium and other minerals in your diet, contact me and I can look at your current diet and health status and make recommendations.