Second Wind questions

[Jaged]

I have a few questions about the second wind implant. First of all, how much health does it give you? How much stamina does it need to give you that health. If you don't have enough stamina to get the full amount of health, would the implant use up any reaming stamina to give you as much health as it could? Also, when does this implant kick in? (how much health left)

Sorry if its kind of incoherent. Its really late here and im tired.