Poorly TV presenter Charlie Webster has vowed to read the "thousands of messages of love and support" she has received after contracting malaria in Brazil.
The 33-year-old Team GB ambassador has had her dialysis treatment reduced and is planning to return to the UK as soon as possible, her management said.
The former Sky and ITV sports presenter fell seriously ill on August 6 following a 3,000-mile (4,828km) charity cycle ride, having arrived in Rio a few days earlier.
Charlie was admitted to hospital, where doctors initially thought she was dehydrated following the gruelling six-week Ride To Rio challenge.
However, her condition deteriorated after she developed a severe complication from a bacterial infection.
In a message to her nearly 80,000 Twitter followers, she said:
A spokesman for Charlie said: "Over the weekend, Charlie's kidneys responded well to treatment and the dialysis has been reduced to around six hours a day.
"Her breathing has also become stronger and breathing support has also been reduced.
"Charlie was able to get out bed and sit in a chair - and best of all, she's got her sense of humour back and has been able to smile at her brother's jokes.
"The goal now is to get Charlie even stronger and fly her back to the UK as soon as possible."