1. It's getting lighter again
Let the longer days give you the enthusiasm you need to get out in the mornings and/or evenings.
I love this quote; "we never regret the runs we do, only the ones we don't do" (Jenny Chambers, journalist).
2. Tip the December mince-pie to miles-run/cycle balance.
Setting a goal of as little as 20mins exercise per day can make a huge difference to your health. The Americal College of Sports Medicine sets the standard in the UK and US. The ASCM recommend that:
" Adults should get at least 150 minutes of moderate-intensity exercise per week.
This can be met through 30-60 minutes of moderate-intensity exercise (five days per week) or 20-60 minutes of vigorous-intensity exercise (three days per week).
One continuous session and multiple shorter sessions (of at least 10 minutes) are both acceptable to accumulate desired amount of daily exercise.
Gradual progression of exercise time, frequency and intensity is recommended for best adherence and least injury risk.
People unable to meet these minimums can still benefit from some activity."