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.
Dehydration. Urine that is dark yellow in color is often a sign that one is dehydrated, or not drinking enough water. This can also happen when an individual sweats a lot, and does not replenish the lost water. Other important factors that can lead to dehydration are excessive vomiting and diarrhea.ark Yellow Urine Causes. The natural color of urine is pale yellow, however, it can become dark yellow, brown, or reddish in color, due to a number of factors like dehydration, and the intake of certain foods and medications.