/u/notyetdeleted's posts in /r/askscience

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Do we lose memories, or only the ability to access them?

581 upvotes

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We always hear cardio, and exercise that results in an elevated heart rate is healthy. What about non-physical activities, which cause adrenaline and create a similar effect?

5 upvotes

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If life on Earth died off, how many years would it take for traces of past life to disappear?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Do we lose memories, or only the ability to access them?	581
We always hear cardio, and exercise that results in an elevated heart rate is healthy. What about non-physical activities, which cause adrenaline and create a similar effect?	5
If life on Earth died off, how many years would it take for traces of past life to disappear?	1