Nearly three-quarters of American adults said they will hit a mental "breaking point" by early June if coronavirus stay-at-home orders extend through the start of summer, says a recent survey.

Interviews with 1,895 U.S. adults between April 3-6 were led by Kelton Global, a consumer insights agency, which found that 69 percent of Americans are "extremely worried" about flying on airplanes once the stay-in-place orders are lifted and 62 percent are worried about going to restaurants.

A majority of respondents said they were concerned about traditional transportation and business activities when the country does lift coronavirus pandemic health protections, but 72 percent noted that another month of lockdown orders will make them hit an emotional "breaking point."

All respondents said they would have some type of mental or emotional breakdown if stay-at-home orders last longer than six months. Sixty-nine percent of respondents say they are going to permanently change at least one everyday behavior of theirs in response to the coronavirus pandemic.

Twenty-one percent of respondents said their concerns about dining out at restaurants, even after COVID-19 has passed, may continue far into the distant future.

More than three-quarters of U.S. adults (76 percent) said they are "extremely worried" about going on a cruise ship. And 75 percent of Americans said they don't believe air travel will ever return to its pre-pandemic procedures.