India has about 15-20 million asthamatics, and it's a problem that many of us are familiar with – although you might not know exactly what triggers it.
Of course, the causes of asthma can vary from person to person, but it can particularly plague many sufferers in the Spring and Summer months.
'Some of the more common asthma triggers are linked to being outside' says Dr Samantha Walker, Director of Research and Policy at Asthma UK.
'Pollen, pollution and changes in weather are all triggers that can make someone's asthma worse and put them at risk of a potentially life threatening attack.'
Interestingly, up to 80% of people with asthma also have hay fever, which can mean miserable Summer months, and, for teenagers and children, can have serious effects on school and exam performance.
Two thirds of people with asthma find air pollution can trigger their asthma symptoms – again not great given that we tend to be out and about much more in the Spring and Summer months.
'Whatever it is that triggers your asthma it's really important that you take your asthma medicines as prescribed by your GP or nurse all year round,' recommends Dr Walker. 'Most people with asthma will have a preventer inhaler which is used in the long term to reduce inflammation – you take this even if you feel well in order to protect you from getting symptoms when you do come into contact with things you're allergic to.'
She emphasizes the importance of acting early to prevent seasonal problems: 'When taken regularly as prescribed, most people with asthma find that they won't react to asthma triggers as much; so if you know grass pollen triggers your asthma in June, July and August now is the time to make sure you are taking your preventer inhaler.'