Typical winter temperatures are below -20 C with extreme lows of around -55 C.

Bipolar disorder is an illness that causes extreme mood changes from manic episodes of very high energy to the extreme lows of depression.

Can the extreme highs even begin to match the extreme lows?

For me, it was extreme highs in career and extreme lows in a relationship.

Like most cold waves of the 1970s, temperatures in January dropped to extreme lows.

Once known as manic depression, bipolar disorder is characterized by dramatic mood swings in which patients experience extreme highs and extreme lows.

- takes you through the highs and extreme lows of one couple's relationship.

There are two moods which he exhibits: extreme highs and extreme lows.

The most telling symptoms of bipolar disorder include mood swings (going from extreme highs to extreme lows) that don't follow a set pattern.

It can withstand extreme lows ranging from -1 to -18 C (30 to 0 F).