You can visit Canada from the U.S. with you passport and stay for up to 180 days without a visa. If youâd like to stay longer, apply to extend your stay at least 30 days before your time limit expires.hether youâll need a visa in Canada depends on the reason you're going. As a United States passport holder, you can visit Canada for tourism without a visa if you donât stay longer than 180 days. If you plan on any other activities during your stay, youâre likely to need a visa.
There are several possible causes of darkened urine. Urinary tract infection is the most common cause, though other types of infections, or kidney dysfunction or disease, are other potential causes. Darkened urine may be related to acute or chronic underlying diseases that affect other regions of the body.
Black urine can be, in a word,... terrifying. We are used to seeing many different shades of yellow, but once you notice urine that is much, much darker than you expect, it is hard not to worry. As with all urine colors, there are a variety of causes of black urine, some harmless, and some much more worrisome.Black urine causes can mainly be broken down into 3 major categories: Food Causes, Medicinal Causes, and Health Causes.t could be stated that health issues donât so much cause your urine to turn black as your black urine is a symptom of those health issues. Itâs a warning sign. It lets you know something is just not quite right. In the case of black urine, it lets you know that perhaps something is very, very wrong.