15/02/2026
You know, Asana features heavily in many modern Yoga practices — and very effective it can be, if it is applied and practised well, and regularly.
But as we know, Yoga is broader than Asana alone. There are the other limbs — Yama, Niyama, Pranayama, and so on. And in the background of the traditional systems, there are also very practical recommendations for maintaining balance throughout daily life.
In Ayurveda these are called Dinacharya - the rhythms that support us day to day - and Ritucharya, the adjustments needed as seasons change, because when the external environment shifts, our internal Doshas shift as well.
Lately I’ve noticed that quite a few people have been falling prey to colds, even though the weather is still warm - sometimes intensely humid.
Any of us can become ill. It’s not a failure, not a crime, and certainly not something to feel guilty about. It’s simply part of being embodied and meeting the challenges of the environment. But getting sick isn’t fun.
One likely factor related to recent colds is the abrupt movement between very different environments: from heavily air-conditioned homes or offices, straight out into heat and humidity, and then back again into cold air.
This becomes even more relevant around practice time. After asana, when the body is warm and often sweating, being exposed immediately to strong air-conditioning, fans, or drafts - or lying in Shavasana while still damp - is not ideal.
Traditional Chinese Medicine explains this very clearly – and perhaps better than any other system (for those who’ve studied “Shang Han Lun” theory). When we sweat, the pores open and the body’s “Wei Ch’i” / “Wei Qi” - the protective energy circulating at the surface -becomes temporarily dispersed. This Wei Qi is said to protect us from external influences such as cold and wind. When it is weakened or scattered, the body becomes more vulnerable.
Some people may regard this as out of step with the times and “ancient thinking,” since modern science speaks in detail of the immune system. Yet even with our detailed knowledge of immune cells, signalling pathways, cytokine storms, and inflammatory responses, modern medicine still cannot always explain why one person becomes sick at a particular moment while another does not.
Systems such as Ayurveda and Chinese medicine describe how our defensive strength is not only about pathogens or microbes, but also about the condition of our vitality - whether we speak of Ch’i / Qi, Prana, or Ojas.
In that sense, these traditional perspectives are not in conflict with modern immunology - they simply describe the body’s defence from a more functional and experiential viewpoint. Traditional systems - Ayurveda, Chinese medicine, and Yoga describe the body in terms of function, balance, and energetic resilience, considering factors such as stress, diet, environmental exposure, seasonal change, and the strength of Qi (TCM), Prana, and Ojas (Ayurveda and Yoga).
Interestingly, many people who come to yoga are comfortable speaking about energy in terms of chakras or the “feel” of a space, and the charge in a particular asana, yet may not consider how environmental energies — temperature, wind, artificial climates — also influence the body.
So, something simple to remember:
- After practice, especially when you are sweaty, it’s wise to change into dry clothing or cover yourself lightly with a light sarong or shawl, before Pranayama or while in Shavasana,
and to be mindful when moving between very cold indoor environments and outdoor heat.
- At work, avoid sitting in the firing line of cold air from an A/C, especially to the back of the neck.
Small attentiveness like this can go a long way in maintaining balance and avoiding unnecessary illness.
From the ancient classic “Huangdi Neijing Suwen”, some 2000 plus years ago –
“Defensive Qi (Wei Qi) circulates at the surface of the body.
It warms the tissues, protects the skin, regulates the pores,
and safeguards the body from external influences”.