National Dengue Day: Dengue is caused by four different strains of the virus. While recovering from one strain provides lifelong immunity to that specific strain, subsequent infections with different strains can lead to more severe symptoms
Mental Health Awareness Month: Also known as hypochondriasis or medical student disease, though the condition is not a recognised medical diagnosis, it is listed as part of 'hypochondriac disorders' classified in ICD-10 and DSM-5 (two major globally accepted classifications of diseases)
Notably, this change in height is usually small, around a quarter to half an inch, and can vary between individuals, said Dr Ankit Batra, orthopaedic surgeon, Sharda Hospital
Colour perception is subjective, and there is no universal standard for what colour should look like, said Dr Ajay Sharma, chief medical director, EyeQ