People often ask whether ninety days is really necessary. It is a fair question. Three months away from work and family is a serious commitment, and if a fortnight would do the job, we would say so.
It usually does not. Here is why.
The research points the same way
The US National Institute on Drug Abuse, which has reviewed decades of treatment research, puts it plainly: most people need at least three months in treatment to significantly reduce or stop their use, and the best outcomes come with longer stays.
The Drug Abuse Treatment Outcome Study, one of the largest follow-up studies ever run, found a clear threshold. People who stayed in residential treatment for ninety days or more did markedly better a year later than those who left earlier. Below ninety days, the benefit of treatment dropped away quickly.
Habit research adds a third angle. A well-known study from University College London tracked how long it takes a new daily behaviour to become automatic. The average was 66 days, with a wide range depending on the person and the habit. Recovery is, among other things, the building of many new habits at once.
None of these studies says that day 91 is magic. What they say is that meaningful change takes about a season, and that stopping early is the most common way treatment fails.
What ninety days is for
It helps to see the three months as four overlapping phases rather than one long stay.
Restore. The first days and weeks are about safety, sleep and routine. The body steadies. Assessment leads to a diagnosis, and the diagnosis decides the therapy.
Connect. Therapy proper begins. Family sessions start. Guests practise being in safe relationships again, first with the group, then with the people at home.
Participate. Activity, skills and contribution. At Salus this is where the Living Prescription does its work: real activity, in a real community, written into the plan with a purpose and a measurable outcome.
Integrate. Identity, autonomy and the plan for continuing care. Leaving is prepared, not sprung.
Progression through these phases is by readiness, not by the calendar. Some people move faster; some need longer in one phase. The ninety days gives room for that.
What about shorter stays?
There are people for whom a shorter stay makes clinical sense, usually because they are stepping down from a longer period of care elsewhere, or because they have strong support at home and a mild presentation. We will always tell you honestly what we recommend. What we will not do is sell a two-week programme as if it were equivalent.
What about longer?
Some people benefit from more than ninety days, especially where there is a serious co-occurring condition or very little stability to return to. Extensions are arranged where they make sense, at the same monthly rate.
If you are weighing this up for yourself or for someone else, a conversation with our team will help you understand what is realistic. There is no obligation, and the call is confidential.