The new generation of hotel spas is selling treatments that promise better sleep, lower stress and longer, healthier lives.
Robert Gordon's College is calling for the issue to be addressed after plans were submitted for a nearby site.
Jason McKelvie says Stirrups Hotel could see its annual rates rise by almost £150k over the next three years.
An industry body survey found hotels in World Cup host cities see the tournament as a "non-event".
A rooftop swimming pool is part of multi-million pound BT Tower redevelopment plans, MCR Hotels says.
Designers say Union House is in a poor state and needs modernising.
The former Greens Hotel in Gretna near the Scotland-England border could become a business centre.
Whitbread says it will also remodel its 197 hotel restaurants as part of a five-year savings plan.
The hotel in Water Oakley wanted to install sports courts but the project has been dismissed twice.