Many older people with high blood pressure can be treated taking fewer pills to get it under control, according to new treatment guidelines from an expert panel. But not all experts are on board with the advice - including the federal agency that appointed the group, Fox News reports.

For adults aged 60 and older, the panel members are recommending a higher treatment threshold, prescribing medicine only when blood pressure levels reach 150 over 90 or higher.

Too aggressive blood pressure treatment can cause fainting and falls in older patients, or bad interactions with drugs they're already taking for other illnesses, panel members said.

In the meantime, the heart association is raising concerns about the new recommendations, saying that many studies they are based on didn't last long enough to reveal dangers of undertreated high blood pressure in older patients. 

The panel said their guidelines are simply recommendations, and that doctors should make treatment decisions based on patients' individual circumstances. The experts emphasized that everyone with high blood pressure can benefit from a healthy diet, regular exercise and weight control, which all can help lower blood pressure.