"It's 24 hours a day, seven days a week," Uzzi said. "It's a challenge."
During the recession and its aftermath, the number of people over 50 who started their own companies grew. Often, it was because of the stiff job market. Sometimes, family or personal circumstances necessitated a change to something more flexible.
Almost always, running a business after decades of working for someone else is turning out to be an adjustment.
Uzzi's Nurse Next Door franchise is the second business he started after taking the buyout in 2010. He first launched an executive-coaching business that drew on his experience as a manager. But he was bored and not making the money he wanted. He began looking for a franchise and settled on Nurse Next Door because of his background in health care.
Running the franchise comes with myriad duties, drumming up sales and hiring among them.
"The constant drive to get clients, the constant sales calls . . . finding good caregivers," said Uzzi, who runs the franchise in Orange County, Calif. He is continually looking for new contacts - local lawyers and churches, for example - who can refer clients. He has 15 and is hoping for more.
Research by the Kauffman Foundation, which studies trends in entrepreneurship, shows that more people ages 55 to 64 turned to business ownership during and after the recession. Its index of entrepreneurial activity among people in that age group rose from 2007 to 2009 and logged a scant decline in 2010.
Some older entrepreneurs keep working in the industry where they've spent their entire careers. That was a big confidence booster for Lori Ames, who started the PR Freelancer in 2010.
"Being 53 and having enough work and life experience made me go into this in a smart way," said Ames, who launched her business after her 22-year-old son was diagnosed with a malignant brain tumor. She decided that running her own company would give her the flexibility to care for her son and work near her Babylon, N.Y., home.
She wasn't worried about getting clients - she had done book publicity and other public relations in Manhattan for more than 20 years. More daunting was the prospect of becoming an employer for the first time.
Ames' business grew so much that nine months after she started the company she was able to hire the first of two staffers. Being responsible for someone else's salary, too, proved stressful.
"That was more nerve-wracking than starting a business," she said.
A lot of older entrepreneurs turn to franchises - they can start making money sooner. Franchises come with ready-made business and marketing plans, not to mention some well-known names.
Uzzi spent $100,000 to buy and set up his Nurse Next Door franchise, a far cry, he said, from what it would take to establish a new business.
"I didn't have $20 million to dump into establishing a brand," he said.