How to make sure that a download on the Internet is safe before downloading the file

Surfing the Internet and not see in the need to download any file, perhaps of dubious origin, is virtually impossible. While there are people who download anything without thinking twice, some have a bit more common sense than that, and is limited to download content from trusted sources, or at least scan the files with your antivirus before
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Nine funny things that science knows about your hair

Science is called trichology that studies the hair and scalp, an extension of our body as related to our health as with our aesthetics. Although until recently it was considered part of dermatology, and obviously is closely related to that branch of medicine, trichology is already the protagonist of many studies and research in which many different scientific disciplines are mixed:
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