This is the characteristic of intangibility
That means that you can't in any way test or see or smell the service but rather you have to rely on the provider's promise that it will be so. That's why it is intangible.
C.taking your time exercising
Bowel incontinence is an inability to control bowel movements, resulting in involuntary soiling. It's also sometimes known as faecal incontinence. The experience of bowel incontinence can vary from person to person. Some people feel a sudden need to go to the toilet but are unable to reach a toilet in time.
So I think you have to go on the internet and find articles! One that likes oils and thinksoils are good and then another one that is against oils and doesn’t like them! Compare and contrast them and highlight stuff that YOU agree with and then see if the articles are actually VERY convincing or not so much
Head injury, as your head is your skull, damaging your skull is very serious as your brain is located there and damaging your brain could probably kill or limit some abilities