Laura Bushnell, King & Spalding, Palo Alto, California

Bushnell is a partner in the firm's corporate, finance and investments practice and focuses on counseling management and boards of directors at private and public companies in the life sciences and technology sectors. Specifically, she advises clients on capital-raising matters, transactions and corporate governance.

How often during the week do you work out? Not as often as I would like. It ranges from one to two weekdays, and then usually both weekend days. I will sacrifice the workout for sleep on any given day. Sleep is underrated.

At what time during the day or evening do you work out? Morning is best. It's a great way to reset for the day, and if I have the workout done, I'm ready for anything the day has to offer. It also creates more energy for the day. I sometimes fool myself into thinking I can do an evening workout at the gym or, in the summer, an evening outdoor run. It only occasionally happens. There is always too much to do at the end of the day, and evenings are reserved for friends, family and networking. I have never been able to do midday workouts, but for some of my colleagues, that really works.

What's your go-to routine? My go-to routine involves a pair of running shoes and shorts. If I'm traveling for work, I always bring running shoes and clothes to do a treadmill run in the hotel gym. I used to not bother working out unless I had at least an hour, but I've realized that any workout, any movement is better than nothing, so I often do a 12-minute treadmill interval workout followed by five minutes of free weights, if strapped for time.

How long does it take? If I have time, I like to do a run outside of 5 to 10 miles, preferably off-road, on dirt trails or away from traffic.

Why do you like this routine? Running outside gives me mental clarity and sets me for the day. There is a feeling of being able to tackle any issue after a morning run. I can also maintain a basic level of fitness that allows me to prepare for a longer race or marathon. I shoot for at least 20 to 25 miles a week of outdoor running, more if training for a marathon or ultra.

What does regular exercise do for you? I have a better attitude and outlook on life when regular exercise is part of my routine. I'm a happier and less anxious person. I sleep better at night, too. I often think about thorny or complex work issues during my run and much of the time find creative solutions to the issues.

How long have you been exercising regularly? My whole life. I can't recall a time when physical activity was not a regular part of my life.

In what ways have you changed your routine over the months or years? Doing the shorter workouts, which are a necessity given the demands of clients and the firm. I also find that meetings or networking can be done with physical activities, group walks or hikes. And the walking meeting has become quite popular in Silicon Valley. I no longer sacrifice sleep for working out.

How do you convince yourself to work out when you don't want to? I always feel better after doing a workout, and this knowledge helps me start the workout. Once started, I almost always start feeling better right away.