In a normal human adult, your heart beat will on average be 60-100 beats per minute. However one thing about medicine is that we never treat the numbers but the patient, and there are people who's heart rates can be lower or higher.
Additionally children and infants to tend to have higher heart rates.
Answer:
Use of oil and vinegar prevents spoilage of pickles because bacteria cannot live in such an environment. Vegetables, fruits, fish and meat are often preserved by this method.
<h2>Please mark me as brainlist.</h2>
The answer is: "obsessive-compulsive disorder (OCD)" .
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Talk to him and see what the problem is and if they still don’t improve fire them